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PAC AmpPRO AP4-CH41 Aftermarket Amplifier Interface Allows seamless addition of an amplifier in select 2014-up Chrysler-made vehicles

Item # 541AP4CH41

You can make a less-than-ideal factory system actually sound premium by upgrading the weak factory amplifier with a...

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You can make a less-than-ideal factory system actually sound premium by upgrading the weak factory amplifier with a...

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65 questions - 96 answers

Item # 541AP4CH41

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$315.00

About the PAC AmpPRO AP4-CH41 Aftermarket Amplifier Interface

Buck Pomerantz

Your amp will sound better than the factory system

You can make a less-than-ideal factory system actually sound premium by upgrading the weak factory amplifier with a more powerful aftermarket amp. PAC's AmpPRO interface consists of a module and a vehicle-specific T-harness that make the job much easier. Now, you can install an amplifier of your own without losing any of your vehicle's factory audio features like warning chimes, navigation prompts, and Bluetooth functions.

Your amp will sound better than the factory system

You can make a less-than-ideal factory system actually sound premium by upgrading the weak factory amplifier with a more powerful aftermarket amp. PAC's AmpPRO interface consists of a module and a vehicle-specific T-harness that make the job much easier. Now, you can install an amplifier of your own without losing any of your vehicle's factory audio features like warning chimes, navigation prompts, and Bluetooth functions.

Simple to install

The package's T-harness plugs into the factory radio and vehicle harness. The small module fits behind the dash, converting your radio's speaker outputs into six preamp-level outputs ready for connection to your amp. The factory amplifier needs to be left connected in the vehicle. The factory radio controls, such as volume, balance, and fade, will work as before for your front and rear speakers. A separate wired remote level control lets you adjust the volume of the subwoofer channels from your front seat. An optional add-on module, PAC's APA-TOS1 adapter, provides an optical digital output for your high-end digital processors and amplifiers to handle.

An app for tweakers

After downloading the AmpPRO PC App and connecting to your Windows-run PC via USB, you can access the factory 3-band parametric equalizer (EQ) and customize the tone of your system to perfection. The app also lets you adjust chime volume, the system's minimum volume level, and update the product firmware when needed.

Important Note: This AmpPRO interface simplifies the installation of a car amplifier (not included). You'll also need to purchase anything required to install your new amp: an amp wiring kitspeaker wire (to replace factory wiring), and RCA cables

READ LESS

Product highlights:

  • amplifier integration module and T-harness
    • add an aftermarket amplifier without removing factory amp
  • works with select 2014-up Chrysler, Dodge, Jeep, RAM, and Maserati vehicles
  • 6-channel RCA outputs (front, rear, subs)
  • switchable 5- or 4-volt RMS output
  • retains factory radio controls and audio features
  • wired remote level control for sub channels
  • remote turn-on lead for amplifiers
  • AmpPRO PC App, available from PAC, lets you adjust minimum and chime volumes and 3-band EQ via your Windows-run PC
  • optional TOSLINK adapter provides digital output
  • warranty: 1 year
  • MFR # AP4-CH41 (R.2)

What's in the box:

  • Amplifier integration interface module
  • T-harness
  • Speaker connection harness
  • 6' Rotary-knob cable
  • Rotary-knob
  • Installation Instructions

Customer reviews for PAC AmpPRO AP4-CH41 Aftermarket Amplifier Interface

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More details on the PAC AmpPRO AP4-CH41 Aftermarket Amplifier Interface

Stacey B.

Product Research

Features

Amplifier Integration Interface: The PAC AmpPRO AP4-CH41 (R.2) simplifies the installation of aftermarket amplifiers in select Chrysler, Dodge, Jeep, Maserati, & Ram vehicles, both with and without factory amplifiers. (Please enter your vehicle information to confirm compatibility.) With the AmpPRO AP4-CH41 (R.2), you can improve your vehicle's audio performance while keeping the original radio's fit, finish, and features.

  • Amplified Vehicles: Compatible with all data-bus controlled amplified systems, no matter the screen size (including the new 12" screen). To identify these systems, look for logos on door speakers, tweeters, dash speakers or the subwoofer to confirm if the vehicle has a compatible amplified system; such as Alpine, Beats or Harman Kardon. Some vehicles may not always have branded compatible systems. Unbranded amplified systems are generally identified by locating a center channel speaker or subwoofer.
  • Non-Amplified Vehicles: If you are installing the AmpPRO in a vehicle that is not equipped with a factory amplifier, you must add an amplifier to the vehicle's speakers, as the factory radio will no longer have a 4 channel variable output after it has been re-configured by the AmpPRO. For example, this will not work to add only a subwoofer to a non-amplified vehicle, as the radio will no longer power the cabin speakers properly. Non-amplified vehicles equipped with an Active Noise Cancellation (ANC) system require the ANC module to be bypassed. This can be done manually or with the ANC bypass harness (sold separately). Click here to see how to tell the difference between an amplifier and an ANC module and for module locations.

Note: The factory radio and factory amplifier (when equipped) must remain connected in the vehicle and be operational in order to use the PAC AmpPRO interface.

Vehicle Compatibility: The PAC AmpPRO AP4-CH41 (R.2) amplifier integration interface is compatible with select versions of the following 2013-2022 Chrysler, Dodge, Jeep, Maserati, & Ram vehicles.

Make Model Year Trim Level
Chrysler 200 2015-2017 All
300 2015-2022 All
Pacifica 2017-2022 All
Dodge Challenger 2015-2022 All
Charger 2015-2022 All
Ram Truck 2022 Non-Classic
Ram Truck 2013-2021 All
Durango 2021 All (10.1" & 8.4" Screen)
Durango 2014-2020 All
Jeep Wrangler 2018-2022 JL
Wrangler 2021-2022 4XE
Wrangler Unlimited 2018-2022 JL
Gladiator 2020-2022 All
Cherokee 2015-2021 All
Grand Cherokee 2022 WK
Grand Cherokee 2014-2021 All
Maserati Quattroporte 2017 All
Levante 2018 All
Ram Ram Truck 2013-2021 All
Ram Truck 2022 Non-Classic

Notes:

  • Jeep Cherokee, Chrysler 200, and Maserati vehicles must be equipped with a factory amplifier as the AP4-CH41 (R.2) cannot reprogram the factory radio to think that an amplifier is present.
  • In non-amplified vehicles, the AmpPRO is only compatible in vehicles equipped with the 7" or 8" factory radio screens; except for the Jeep Wrangler and Gladiator which is supported for 5", 7", and 8" factory radio screen models.
  • 2019 Ram Trucks (non-Classic), 2015-2016 Jeep Grand Cherokee, and 2017-2019 Pacifica vehicles have an ANC module that will need to be bypassed.

6Ch Pre-Outs: The PAC AmpPRO AP4-CH41 (R.2) provides a 6-channel pre-amp output for use with aftermarket amplifiers. Using the full-range, fixed level factory radio output the AP4-CH41 (R.2) delivers a variable 5V RMS pre-amp output with fading, balance, equalization, and level control capabilities.

Non-Fading Level Control Knob: Channels 5-6 (Sub) of the AP4-CH41 (R.2) are non-fading outputs. The output level of channels 5-6 can be controlled using the supplied level control knob. The level control knob comes with a 6' cable which plugs into the interface module and should be mounted in an accessible location.

Data Controlled Remote Turn-On: A data controlled remote amplifier turn on wire is also provided by the PAC AmpPRO AP4-CH41 (R.2). The remote turn-on current is rated at 2-amps. If more current is needed an external relay must be used.

Retained Factory Audio Features: The PAC AmpPRO AP4-CH41 (R.2) also retains all audio from other vehicle features such as factory Navigation Prompts, Bluetooth, uConnect, and Warning Chimes.

Minimum & Chime Volume: If the minimum volume of your factory radio is too loud once the AP4-CH41 (R.2) is installed, you can manually set the level of the minimum volume using either the programming button on the side of the interface or the factory SWC (Steering Wheel Controls) in conjunction with the supplied level control knob. You can also use AmpPRO PC app. You can also adjust the chime volume level.

AmpPRO PC App: Using the AmpPRO PC App (for Windows PC only) allows you to configure user interface options such as Minimum Volume Level, Chime Volume Level, and a 3-Band EQ from your Windows computer or laptop. The app can also be used to update product firmware.

  • Minimum & Chime Volume Level: From the app you can set the minimum volume level of the factory radio, as well as the chime volume level.
  • 3-Band EQ: Enables the 3-band EQ (Bass-Mid-Treble) with frequency and Q-factory adjustment. The Bass Frequency can be set to 60, 80, 100, or 120Hz; while the Bass Q-Factor can be set to 0.5, 1.0, 1.5, or 2.0. The Mid Frequency can be set to 500, 1k, 1.5k, or 2.5k; while the Mid Q-Factor can be set to 0.75, 1.0, 1.25, or 1.5. The Treble Frequency can be set to 7.5k, 10k, 12.5k, or 15k; while the Treble Q-Factory can be set to 0.75 or 1.25.
  • Firmware: The AmpPRO app will also allow you to update the interface with new firmware as it becomes available.
Note: These AmpPRO PC App settings can be adjusted with the module installed in the vehicle or on the bench. However, it is recommended to make the adjustments with the module installed, and the factory radio on so that the changes can be heard.

Dip Switch: Set dip switch 2 to "ON" to lower the RCA output voltage to 4V. Set the dip switch 2 "OFF" to keep the RCA output voltage at 5V. Dip switches 1-3-4 are not used.

Optional Toslink Add-On Module: When used in conjunction with PAC's APA-TOS1 (541APATOS1; sold separately), the AP4-CH41 (R.2) can provide a variable 2-channel fiber optic digital audio output (toslink). Toslink fiber-optical cable also sold separately.

Optional Amplifier Harness: The APH-CH01 installation harness (541APHCH01, sold separately) simplifies speaker wire connections when using one the PAC AmpPRO AP4-CH41 (R.2) to add an aftermarket amplifier or amplifiers in select vehicles that feature factory amplified sound systems. The APH-CH01 keeps you from having to cut or modify your vehicle's original factory wiring, providing a direct connection at the vehicle's original factory amplifier location (you will need to make hardwire connections at the aftermarket amplifier/s).

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Customer Q&A

65 questions already asked

Q
why do some box say AP4-CH41 R.2 and some boxes don't say R.2?
shellz  Mar 16, 2024
1 answer
A
Greetings Nigel. Thank you for your question. (r.2) is the newer version of the AP4-CH41. It supports both factory amplified systems, and also non factory amplified systems. The original version only worked on factory amplified systems.
hogan  Mar 16, 2024 (Staff)
Q
I have a 2022 Ram 2500 Tradesman with 8.4 screen. No Alpine system. No HK system. Do I have a factory amp installed?
j2thesea  Jan 10, 2024
1 answer
A
We need to know your cab style and total speaker count (10 or 6 with the non-premium trim) to confirm any details, Joshua. Please use our online Vehicle Guide in the link below to enter your exact details, and we can list parts that fit your vehicle. Pulling up our info on the Crew Cab with 6-speaker system and 8.4" radio, the PAC AmpPro AP4-CH41 is compatible and would also need the PAC APH-CH42 amp install harness in the second link below. Keep in mind that aftermarket amplifier(s) (sold separately) must be used along with this package. The factory stereo will no longer power any speakers directly. https://www.crutchfield.com/m_266150/Car-Stereos.html https://www.crutchfield.com/p_541APHCH42/PAC-APH-CH42-AmpPro-Harness.html
bo  Jan 10, 2024 (Staff)
Q
I have a 2017 Jeep grand Cherokee with no Harmon/Kardon setup. A shop installed this for me to power 4 channel amp for front and rear mids and a monoblock for a 10inch sub but the subwoofer doesn't really work with music. Anything to specifically look for? I noticed something they said to keep factory speaker wires plugged in and noticed my rear speakers are straight from the amp to speakers, that wouldn't be the issue would it?
jordan  Jan 08, 2024
1 answer
A
Greetings Jordan. Sorry you are having issues. If you had purchased this from Crutchfield, I would refer you to call our tech support line. To me it does not sound like its all connected properly or could be some type of defect as well. Only thing that comes to mind is if its just the subwoofer not working, the vehicle could have active noise canceling. If thats the case and it was not bypassed, its going to cancel out the frequencies from your sub.
hogan  Jan 08, 2024 (Staff)
Q
Do I need to buy this if I want to bypass the anc module or can I just buy the anc bypass harness?
brian  Nov 12, 2023
1 answer
A
It is possible to simply use the ANC bypass harness. However, depending on the nature of your project, it may be preferable to also use the AP4-CH41. Our advisors can provide personalized assistance via online chat or phone at 1-800-324-9695.
zachary  Nov 12, 2023 (Staff)
Q
I have a 2020 2500 ram and I am installing the pac ap4-ch41 (r.2) with the bypass for the ANC . I want to install 2 12" subs with a two channel amp and another 4 channel amp for my speakers. I don't know if I have to run my wires from my 4 channel to the speaker connection harness that the pac Ap4- ch41 (r.2) comes with or just run them straight to my speakers? Also I know I have to use the (sub) RCA (on pac module) for my sub amp. What RCA do I use for my 4 Chanel (speaker) amp on the pac module? Also my truck non amplified.
austin  Oct 05, 2023
1 answer
A
Depending on the output wattage of your 4-channel amplifier, it may be possible to simply connect the speaker outputs of the amplifier to the speaker wire connections of the AP4-CH41. However, if your amplifier is rather powerful (around 100 w RMS or more per channel), then it will be ideal to run wire directly from the amplifier to your speakers. As for which RCA connections to use for the 4-channel amplifier, I would recommend using the four remaining RCA connections left over after connecting the subwoofer amplifier.
zachary  Oct 05, 2023 (Staff)
Q
Has anyone had issues with the factory radio not working? Occasionally I have to disconnect my batteries to reset the system to get the radio to work. I sometimes have to disconnect and reconnect the amp pro to get the radio to work correctly.
jason  Sep 23, 2023
1 answer
A
That sounds frustrating, Jason. For any issues with products purchased from Crutchfield, please call our Technical Support line at 1-888-292-2575 and we would be happy to help troubleshoot.
bo  Sep 23, 2023 (Staff)
Q
I have a amp for a sub and a 4 channel amp for the 4 new kicker 6x9 i want in my vehicle I also have 2 new 3.5s for the front deck will I need anything else to get the subs and speakers connected also if I wanted to have the 2 3.5s powered by my 4 channel amp what would this look like?
trevyn  Sep 21, 2023
1 answer
A
Greetings Trevyn. Thank you for your question. This PAC amp pro interface has 6 channel preamp outputs for your 4 channel, and subwoofer amp. What else you need would be the amp wiring kits of course, RCA cables from the PAC interface to your amps, and if the 3.5s are going to run off the 4 channel as well, they would be parallel wired with the front door speakers, and you should be using a bass blocking filter for them.
hogan  Sep 22, 2023 (Staff)
Q
I'm waiting on my AP4-CH41; how do identify the wires on the speaker harness to make sure they connect to the correct channels on the amp?
kevin  Apr 22, 2023
1 answer
A
These wires follow a standard wire color scheme for aftermarket audio equipment: white = front left, gray = front right, green = rear left, violet = rear right. Solid colors denote positive polarity, and black stripes denote negative polarity.
zachary  Apr 23, 2023 (Staff)
Q
Installed in a 2022 wrangler jlu, works great for the two alpine pod speakers I added but factory speakers stopped working, any ideas how I can fix it? Has stock sound system from factory
chase  Mar 29, 2023
1 answer
A
This PAC AmpPRO AP4-CH41 interface changes all speaker-level outputs to line-level RCA. It is not capable of sending just signal for a sub and keeping your factory speakers. You will need to add a 4-channel amp to power your full-range speakers. The Alpine Power Pack KTA-450 in the link below is always my top choice in these situations, small size and stellar performance! https://www.crutchfield.com/p_500KTA450/Alpine-KTA-450-Power-Pack.html
bo  Mar 29, 2023 (Staff)
Q
Installed in a 2022 wrangler jlu, works great for the two alpine pod speakers I added but factory speakers stopped working, any ideas how I can fix it? Has stock sound system from factory
chase  Mar 29, 2023
1 answer
A
This PAC AmpPRO AP4-CH41 interface changes all speaker-level outputs to line-level RCA. It is not capable of sending just signal for a sub and keeping your factory speakers. You will need to add a 4-channel amp to power your full-range speakers. The Alpine Power Pack KTA-450 in the link below is always my top choice in these situations, small size and stellar performance! https://www.crutchfield.com/p_500KTA450/Alpine-KTA-450-Power-Pack.html
bo  Mar 29, 2023 (Staff)
Q
I have a 2022 Ram 2500 with the 8.4" non-amplified system. Will this interface retain the factory fade, balance and tone controls?
william  Mar 21, 2023
1 answer
A
If you have the 8.4" screen in your 2022 RAM you still have an amplifier that is powering your speakers, you just may not have the Harman Kardon Audio system. This interface will retain your factory fade, balance, and tone controls. You will also need the car specific t-harness that goes along with this interface: https://www.crutchfield.com/p_541APHCH42/PAC-APH-CH42-AmpPro-Harness.html.
allison  Mar 21, 2023 (Staff)
Q
I have a 2015 dodge durango with factory uconnect stereo i installed an lc2i and aftermarket amp i tried running mids and high speakers but i got clipping what would be the cause of it and what do i need to stop them from clipping?
gio254  Feb 19, 2023
1 answer
A
Greetings Gio, and thank you for your question. Starting in 2015 Chrysler radios need to have a load presented to the radios built in amplifier. If you disconnect speakers from the radio, that load is no longer there. Radios then either just shut off, or clip. Could be as simple as just adding load generating devices in line, or a signal processor that also handles generating that load. The Audio Control LC2i Pro, has the load select switches. For more help with this, please call one of our advisors at 800-324-9695.
hogan  Feb 19, 2023 (Staff)
Q
Can the single remote wire be used to turn two amps on and off? If so, what is the process?
steven  Jan 22, 2023
1 answer
A
Greetings Steven, and thank you for your question. single remote wires can turn on two amplifiers. Aftermarket stereos have just the one remote wire, and they have a 12 volt signal out as well. Our technical support staff can help you with the wiring when it comes time. You will have a direct Crutchfield tech support number on your shipping confirmation email. We support products purchased with us for life.
hogan  Jan 22, 2023 (Staff)
Q
I have a 2022 Ram 1500 with the 12 inch screen and the 19 speaker HK system. I just want to add a sub and retain all the other speakers, or eliminate to facorty sub. Do I absolutely NEED this along with the CH-42 just to add a sub? Looking to do a JL JD500/1 amp to a single JL 10TW3.
red22trx  Jan 12, 2023
1 answer
A
That PAC combination would replace the entire Harman Kardon system so if all you are looking to do is add a subwoofer and retain everything else then you would not need it. You can get a line output converter to tap into the stock system for signal so it can work at the same time as everything else. We have friendly advisors that can help you pick out the right products for your truck so please give us a call at 800.324.9695 and we will get you taken care of!
arielle  Jan 12, 2023 (Staff)
Q
Can you use this the Kenwood ar600-DSP amplifier instead or a Maestro AR? I have the Dodge Charger with the Alpine 6 speaker system but have the amplifier already...
corey  Jan 10, 2023
1 answer
A
You cannot swap in the Pac AmpPRO AP4-CH41 interface sadly, Corey. If you have the fantastic Kenwood AR600-DSP amp on hand you will most likely need the AR module in the first link below paired with the iDatalink HRN-AR-CH2 harness in the second link for connection signal wise to your Charger if it is the 15-16 6-speaker Alpine system. If you only have the amp on hand, don't forget to also grab a 4-gauge Crutchfield wiring kit in the third link. https://www.crutchfield.com/p_794ADSMAR/iDatalink-Maestro-AR-Amplifier-Replacement-Module.html https://www.crutchfield.com/p_794HARCH2/iDatalink-HRN-AR-CH2-Harness.html https://www.crutchfield.com/p_007CK4/Crutchfield-CK4.html
bo  Jan 10, 2023 (Staff)
Q
The rear speakers in my 18â?? ram 2500 stopped working. Would I be able to use this to add an amp and get my rear speakers working again? Iâ??m thinking the amp built into the uconnect system is unit is blown for the rear channel
zac  Dec 20, 2022
1 answer
A
If you are having issues with your OEM amp Zac, then the PAC AmpPRO AP4-CH41 is a good call. These do only work on the factory amplified systems with 8.4" screen radios and are a great call for folks that want great sound and to keep the original radio. You will need to add an amp to power all speakers. We also recommend upgrading to new speakers if yours are original as the new amp will be too powerful for factory speakers. If you need help choosing a package, don't hesitate to give us a call at 1-800-316-3061 and an Advisor can help!
bo  Dec 23, 2022 (Staff)
Q
The rear speakers in my 18â?? ram 2500 stopped working. Would I be able to use this to add an amp and get my rear speakers working again? Iâ??m thinking the amp built into the uconnect system is unit is blown for the rear channel
zac  Dec 20, 2022
1 answer
A
Greetings Zacjack, and thank you for your question. This PAC AmpPRO interface would essentially bypass the factory amplifier, but would work for what you need it to do, just re amplify all the speakers then at that point. And I would highly recommend replacing the speakers as well. Aftermarket amplifiers are going to have more power than the factory amp had, and more than what a factory speaker can handle. If it were me, I would attempt replacing the rear speakers first, and if you still have no sound, its the factory amplifier. Your also going to need a vehicle specific T harness for that AmpPRO, but we should have that for the 2018 RAM.
hogan  Dec 20, 2022 (Staff)
Q
I'D LIKE TO ADD A 4-CHANNEL AMPLIFIER TO MY 2020 DODGE CHALLENGER GT (NON-AMPLIFIED). IS THIS THE R.2 VERSION?
joshua  Oct 26, 2022
1 answer
A
That PAC adapter is the R.2 version but we do have different PAC adapters that are compatible with the 2020 non-amplified version of the Challenger. If you give us a call at 800.324.9695 on of our advisors can show you the ones we have to allow to you install a 4 channel amp.
arielle  Oct 26, 2022 (Staff)
Q
If I use this along with audiocontrol dm810 dsp, which bass knob should I use? The one with the amp pro or the one with the dm810? Does it matter? My sub amp has one too lol. I'm not sure what's best option. Thanks
erik  Jul 20, 2022
1 answer
A
In this situation it would be ideal to use the knob for either the DM-810 or the sub amp. We typically do not want to change the input signal strength going into a DSP such as the DM-810. Doing so can throw off the settings of your DSP. For this reason we would not use the bass knob for the PAC. Adjusting the subwoofer volume out of the DSP or on the subwoofer amplifier would be a much better choice.
zachary  Jul 20, 2022 (Staff)
Q
Why do my factory speakers not work anymore after installing the AP4-CH41 Kit with 6 aftermarket speakers and aftermarket amp in my Jeep Wrangler 2020 JL Willys?
trevor  Jul 11, 2022
1 answer
A
Greetings Trevor, and thank you for your question. My guess is the signal from your radio is now going thru the PAC Amp Pro and out to your new amplifier, and new speakers. Somewhere in the line the signal is no longer getting to your factory speakers. We do have tech support for our customers. If you purchased this from us, your invoice email will have a direct number to call into our tech line. If you purchased this elsewhere, you should be able to get help direct from PAC as well. Their number is 727-592-5991.
hogan  Jul 11, 2022 (Staff)
Q
Does this add any sound quality over other alternatives or just ease of installation?
patrick  Jul 08, 2022
1 answer
A
This PAC AmpPRO AP4-CH41 is absolutely the easiest solution with a factory radio, Patrick! This unit does offer signal summing, and you do have some tuning capabilities with the AmpPRO PC app. You will need to connect your Windows based laptop via USB to tune, but you'll have a 3-Band EQ,(Bass-Mid-Treble) with frequency and Q-factory adjustment. You can also select your output RCA voltage, OR connect an option Toslink optical output adapter I've linked below if you go big on your amp setup! The PAC AP4-CH41 isn't just a looker, it also performs! https://www.crutchfield.com/p_541APATOS1/PAC-APA-TOS1.html?tp=6348
bo  Jul 08, 2022 (Staff)
Q
I have 2013 ram uconnect non alpine. I want to connect a 5 channel amp. After I connect the amp pro and get the rca output for the amp. Do I have to run each speaker cable to the amp ??
gerardo  Mar 29, 2022
2 answers
A
You will need to run the RCA cables, and a remote turn on wire if you are using one, from the Amppro to the amp. Then you will need to connect speaker wires from the amp to each speaker. I have the Alpine system, so I purchased the additional wiring harness Amppro offers to bypass the factory Alpine amp. That allowed me to run speaker wires from my amp and tap in to the existing speaker wires all in one place at the bypassed factory amp. I don't know if there is a similar option for non-Alpine systems. One other tip, make sure to disconnect the battery anytime you are doing something with the Amppro. I was making a quick change to my system so I didn't take the time to disconnect the battery, and managed to fry it. If that happens, the entire Uconnect is dead (no radio, climate control, reverse camera, etc.) until you disconnect the Amppro.
jonathan  Mar 30, 2022
A
RCAs go into the amp for signal input but you'll still need to run speaker wire to the speakers somehow ... there may be a non amplified t harness available but if there isn't then you'll need to grab behind radio, grab in kick panels and b-pillars or run speaker wire directly to the speakers
jaymeson  Mar 30, 2022
Q
Will this work for a 2019 Dodge Challenger sxt?
prezzy  Dec 03, 2021
1 answer
A
You will want to contact an Advisor by phone (1-800-324-9695) or online chat to discuss compatibility with your factory system. They will be able to pull up your vehicle and see if this will integrate. If it does not, then they will also be able to discuss other options with you.
kenneth  Dec 04, 2021 (Staff)
Q
I have a 2019 ram 1500 non amplified. Installed a 4ch amp for door speaker(stock) and i only get good sound from the right side. No sound from front left and week sound from rear left. Did i miss something if i connected everything correctly?
carlos  Nov 07, 2021
1 answer
A
If you purchased the product from Crutchfield, feel free to contact our Tech Support team. They can walk you through the connections/settings on the product and see if there may be a fix. Our toll-free Tech Support number is printed on your invoice, and is also available under the "My Orders" tab in the "My Account" section of our website. If you did not purchase the unit from Crutchfield, then you may want to contact the manufacturer.
kenneth  Nov 08, 2021 (Staff)
Q
Will this work with a 2021 Jeep Wrangler Sahara? I have the base audio system and Im trying to add a 4 channel but uconnect has load sensing which is why I need this.
randy  Oct 03, 2021
2 answers
A
Yeah it should work just fine just get some professional installers that know what they are doing.
travis  Oct 19, 2021
A
I would check the PAC website (PAC-audio) and if you're not sure, try calling them direct.
jessica  Oct 04, 2021
Q
I have a 2021 Ram 1500 non amplified stereo is this the right harness for me?
david  Sep 28, 2021
1 answer
A
I honestly don't know about that model year, mine is a 17 with amplified system. I would call and ask crucified
chad  Sep 28, 2021
Q
I have the AmpPRO AP4-CH41 (R.2). Install two amps with it. One amp turns on and off fine the other turns on but not off. Any suggests?
jesus  Sep 16, 2021
1 answer
A
If you purchased the product from Crutchfield, feel free to contact our Tech Support team. They can walk you through the settings on the product and see if there may be a fix. Our toll-free Tech Support number is printed on your invoice, and is also available under the "My Orders" tab in the "My Account" section of our website. If you did not purchase the unit from Crutchfield, then you may want to contact the manufacturer.
kenneth  Sep 20, 2021 (Staff)
Q
With the amp pro if I am just using it for a sub what dip switch do I turn on?
timothy  Aug 24, 2021
1 answer
A
If you purchased the product from Crutchfield, feel free to contact our Tech Support team. They can walk you through the settings on the product and see if there may be a fix. Our toll-free Tech Support number is printed on your invoice, and is also available under the "My Orders" tab in the "My Account" section of our website. If you did not purchase the unit from Crutchfield, then you may want to contact the manufacturer.
kenneth  Aug 28, 2021 (Staff)
Q
I have a 2013 RAM 1500 8.4 non-Alpine system. Is this all I need to install an aftermarket amp and sub? Also is there a 3.5mm female adaptor for gain knob?
timothy  Aug 20, 2021
3 answers
A
Yes that's all you need. And no there isn't an adapter for the gain knob
maurice  Aug 23, 2021
A
Yes this is the only thing you have to buy make sure you follow the instructions for setting up after install, the gain knob plugs into the back of the pac4 interface . If you use a amplifier with a gain knob you won't need the one that is with the pac4
gregory  Aug 20, 2021
A
yes
wilfredo  Aug 20, 2021
Q
So I want to swap speakers and amp in my 2020 Dodge Charger with the 6 speaker Alpine system. I also want to use the optical cable option for my DSP. I'll be running all new speaker wire as well. Will I be able to retain all my chimes and back up sensors going this route? Someone told me I also needed the idatalink AR. I plan on using an Audison Prima amp/DSP.
david  Jul 31, 2021
1 answer
A
You will want to contact an Advisor by phone (1-800-324-9695) or online chat to discuss compatibility with your factory system. They will be able to pull up your vehicle and see if this will integrate. If it does not, then they will also be able to discuss other options with you.
kenneth  Aug 01, 2021 (Staff)
Q
I recently installed aftermarket speakers, three amps, all is working except my bass there is no sound coming from the sub. Everything else is working.why am I not getting bass?
stormi  Jul 18, 2021
2 answers
A
Did you turn the subs on in your head unit? Sometimes they have to actually be turned on in the crossover area of your head unit
lonnie  Jul 18, 2021
A
Did you check power to the Sub? Verify dip switches on the back of the PAC AMP are set correctly. They can be a bit confusing.
thomas  Jul 18, 2021
Q
I am seeing conflicting information on compatibility with 2020 Jeep Wrangler Unlimited JL. Will this work with a 2020?
gregory  Jun 21, 2021
1 answer
A
According to PAC-Audio's website, it works only up to 2019 on Jeep Wrangler Unlimited
ryan  Jun 21, 2021
Q
I have an 2014 Ram with out the alpine system. Is the PAC AmpPRO AP4-CH41 what i need to add aftermarket amps and sub?
sean  Jun 14, 2021
1 answer
A
This PAC AmpPRO interface will work in your pickup to create the preamp outputs needed to install aftermarket amps. If you are only going to install an amp to power subs, then there is a different PAC interface that only creates the subwoofer preamp outputs found here: www.crutchfield.com/p_541APSCH41/item.html
jason  Jun 29, 2021 (Staff)
Q
I have a 2020 Challenger ScatPack 1320 and base 6 speaker stereo. I want to put my component speakers up front, rear deck speakers, a 10inch L7 sub, and a Rockford Fosgate 1000watt 5 channel amp. Is the PAC AmpPRO all I need to integrate the speakers, sub, and amp? I will also be running my own speaker wire for this. Thanks! Also, I do not want to lose the abilities of my 8.4 factory screen.
stephen  May 26, 2021
1 answer
A
This is compatible with the 6 speaker system that has that bigger 8.4" screen and will work to create the preamp outputs needed to supply the proper audio to the amp running your system. Nothing else is needed for that task. Just need the amp kit, RCA cables, etc... like needed when installing that to an aftermarket radio. The only ability that is lost is the ability for the stock radio to power any speakers itself; it loses no other abilities. Since you are completely changing the system, I know that one doesn't matter and this will work for you
jason  Jun 19, 2021 (Staff)
Q
I have a 2015 ram 1500 do I need the little 30 dollar wiring harness to install my speakers and amp?
zachary  May 20, 2021
1 answer
A
The optional $30 harness plugs into the stock wiring that runs from the stock amp to all the speakers making it easy to use with a compatible after market amp. While its not necessary, it can help simplify the install
jason  May 22, 2021 (Staff)
Q
I have a 2018 stock challenger stereo, it does have the touch screen and I believe the 4 speaker system. The list says it will but when I select it to add to cart it says it will not fit. Will this work?
donald  May 20, 2021
1 answer
A
If the Challenger has the base audio system, then this will not work. It works in all the others. I recommend contacting an advisor by calling 1-800-324-9695 to discuss your vehicle and its design to confirm compatibility.
jason  May 24, 2021 (Staff)
Q
I have more than one amp. Do I need multiple interfaces?
david  Apr 27, 2021
2 answers
A
I run three amps off one interface
brad  Sep 30, 2021
A
It would depend on the equipment you're running. The output from this provides one signal over fiberoptic that I then ran to a Audio Control DSP which then divides the signal and allows minute adjustments to each channel for ultimate tuning flexibility.
jessica  Jun 16, 2021
Q
2018 Jeep Wrangler jl... could I use this kit and hook up new speakers and aftermarket Head Unit? I have new speakers, amplifier, and new HU.. would this kit be helpful?
cahare  Apr 11, 2021
1 answer
A
This kit is not needed when replacing the factory radio. Other parts and cabling will be needed. I recommend contacting an advisor by calling 1-800-324-9695 to discuss your goals and setup to get a list of all the parts needed to complete the installation
jason  May 09, 2021 (Staff)
Q
I am installing this in a 2019 ram 1500 new body with factory alpine sysyem. Will this harness bypass the ANC module or will I still have to disable it?
joel  Apr 06, 2021
1 answer
A
This is not compatible with those Ram pickups that have the ANC system. At the time of this reply, we do not have a vehicle specific amp interface that will work and recommend using a more universal model. We have advisors that can be reached by calling 1-800-324-9695 who will be happy to check if we gotten a vehicle specific interface that will work and help give recommendations on universal model if there is still no specific solution
jason  May 02, 2021 (Staff)
Q
Difference between version 1 and 2?
josh  Jan 16, 2021
1 answer
A
I didn't know there was a version 1 and 2
aaron  Jan 17, 2021
Q
I'm setting up a system in my Jeep JL with stock HU and adding AudioControl DM-608 DSP Audio Control LC-6.1200 Amp Alpine S-A60M Mono Amp Resistors for speaker wires (apparently necessary) New wiring to hi-output speakers and 1 12" sub What am I losing if I dont have a PAC AmpPro? Do I need the resistors if I have the AudioControl DSP?
daniel  Dec 26, 2020
2 answers
A
if you are using a dsp you shouldn't need resistors as long as you connect the dsp befor the stock amp, the amp pro does all of that in one package plug and play i havent had any issues and its running to 2x jl 12s and my rear doors
chad  Dec 29, 2020
A
You won't lose anything The PAC is necessary if not installing a DSP. May be a bit more intensive to install HU straight to DSP, wire by wire. PAC comes with harness that plugs directly into factory HU harness and allows you to run cable to amps instead of speaker wire. That's all I can think of
chris  Dec 29, 2020
Q
What exactly does Dip switch 1 do? It the manual it makes it non fading, but I guess I'm asking how does this effect output signal/gain/volume to amplifier?
michael  Dec 13, 2020
1 answer
A
I used the TOSLINK connection module, and dipswitch 1 is what you set to ensure 2 channel output (L & R). This of course makes it non-fading, but you adjust db levels for each channel as well as individual EQ's for each channel as well, so that wasn't a factor for me.
jessica  Dec 28, 2020
Q
I have a 2013 ram 1500 with alpine system along with a Crux RVCCH-75D installed, which requires the t harness behind the head unit. Will this interfere with the ap4-ch41 or vice versa? Will I still be able to hook it all up?
michael  Oct 25, 2020
1 answer
A
We have not received any answers from other customers on your question. I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They should be able to help answer your question.
thomas  Nov 25, 2020 (Staff)
Q
Will this work in the 2013 ram 1500 alpine system? The PAC website states it is compatible with my truck, but crutchfield states it will not?
michael  Oct 25, 2020
3 answers
A
i am not sure, it worked on mine but i have a 2017 with alpine, their web site should be accurate it is their product it is a plug and play so you could try and if it doesn't work you can return it
chad  Oct 26, 2020
A
Both the PAC site and Crutchfield sites look like the RP4-CH21 is the interface for a 2013 Ram. I'd call one or both to confirm though.
steve  Oct 26, 2020
A
Give PAC a call to verify, then order it. You can always return it to Crutchfield if it doesn't work.
trevor  Oct 25, 2020
Q
Will this work in the 2013 ram 1500 alpine system? The PAC website states it is compatible with my truck, but crutchfield states it will not?
michael  Oct 25, 2020
2 answers
A
Hi, I have it on 2018 ram it work good. I don't know if will work on 2013, check for the harmed see if they are the same, if they are should work. hope this help you
wilfredo  Oct 26, 2020
A
It says selected models 14 and up. It fit my 2017 dodge ram mega cab. I love it.
aaron  Oct 25, 2020
Q
Will PAC AmpPRO AP4-CH41 Aftermarket Amplifier Interface work on 2020 RAM 3500 ?
anthony  Oct 12, 2020
1 answer
A
You will want to contact an Advisor by phone (1-800-324-9695) or online chat to discuss compatibility with your factory system. They will be able to pull up your vehicle and see if this will integrate. If it does not, then they will also be able to discuss other options with you.
thomas  Nov 05, 2020 (Staff)
Q
Has anyone had problems with their factory radio not coming on when the amp pro is connected?.. my factory harness works fine
josh  Sep 17, 2020
3 answers
A
You have to program it when you first install it. Did you do the stamps where you unlock your doors, turn inhibition on, turn off, lock doors and wait....etc etc? That programs it to your radio.
kenneth  Sep 17, 2020
A
i haven't had any problems i connected it directly with there supplied harness never used the one crutchfield sent that had to be wired in and i have had no issues
chad  Sep 17, 2020
A
I think there is a video about this on YouTube. Incase you didn't do so, make sure you follow the correct sequence. Roll windows up, lock doors, etc.
kent  Sep 17, 2020
Q
Would I absolutely need this product to install 6 aftermarket speakers and an aftermarket amp in 2020 jeep wrangler 4-door JL? 7" screen base system w/o sub. I have read that you need this or something similar to trick the Uconnect system into thinking the stock speakers are still installed. However, I have read this with Jeeps that do not have the new Uconnect system that the 2020 does.
tyler  Sep 05, 2020
3 answers
A
Your head unit works with the factory digital amp, this price bypasses the factory amp and all of the processing, to give you a true 4v output. With this piece you can still use the factory amp and speakers, or eliminate them all. Great for upgrading in small increments. Highly recommended!!
trevor  Sep 14, 2020
A
As much as I understand it you will indeed need this or something similar. It stops the turn on "pop" sounds and the mids wouldn't play without it.
paul  Sep 14, 2020
A
I use it on my dodge work great, but you don't need it, because the amp the i buy have high input level the i could use from the speakers. I did not know when i buy this product. Help i help you Wilfredo
wilfredo  Sep 14, 2020
Q
Is this the PAC AmpPRO 4 AP4-CH41 R.2 and will it work in my 2019 RAM 1500 with factory alpine system?
timothy  Aug 15, 2020
5 answers
A
I just wanted to confirm what the others have said that this is the R.2 model. It also works in your 2019 Ram 1500's with the Alpine audio system!
jason  Sep 05, 2020 (Staff)
A
It is the R.2, check the PAC website for compatibility
gregory  Sep 01, 2020
A
yes
david lee  Aug 31, 2020
A
Also my 2018 Ram 1500 does have the factory Alpine system. Or it did :)..
jim  Aug 31, 2020
A
I installed this in my 2018 Ram 1500 sport and it works fine. The only issue is high line voltage had to turn down the gain on the amps or I would get this fuzzy / distortion sound that was pretty loud from my highs and mids. The other thing I do not like about the PAC AmPro 4 AP4-CH41 R.2 is the lowest LP is 60Hz. Most amps will go down to 50hz LP or lower so this module cuts anything off below 60Hz (the deep bass). I would assume PAC audio can fix this with a software update but they haven't I even called and asked them.
jim  Aug 31, 2020
Q
Just installed this on my 2019 JLU w/o premium sound system. Did all setup steps after install, sound only came out of sub and rear speakers and couldn't adjust the volume. In the troubleshooting section it says if that happen a powered amp is needed, so I installed a 4ch amp to factory speakers, now there is no sound whatsoever! Did I do something wrong?
adam  May 03, 2020
1 answer
A
You need to double-check the dip switches on the PAC AmpPRO. I would also recommend running your own speaker wire if you haven't done that already. I installed a 4-channel amp, (front and soundbar), along with this sub. (Also in a 2019 JLU Base System) Morel 603's upfront, kicker 2-ways in the soundbar. Head Unit > PAC AmpPRO - RCA from PAC AmpPRO to amp, RCA from PAC AmpPro to powered SUB. Speaker Wire - Speakers > amp Power - Battery > Distribution Block > 1 to amp, 1 to powered sub Ground - Scrape paint until you hit bare metal > distribution block > 1 to amp, 1 to powered sub I'd check the ground first, verify the screw holding the nut and cable are tight to the frame.
thomas  May 28, 2020
Q
Will this work in a 2016 Dodge ram 2500 with the 9 inch stereo?
dan  May 15, 2019
2 answers
A
To be sure I would consult the PAC website, but I also pack 9"... of stereo in my 2015 Jeep and it works...
craig  May 15, 2019
A
I don't see why not. You need this if you are keeping the factory radio. I had a 2015 Powerwagon with the 8.4 nav head unit and my aftermarket subs sounded great.
jason  May 15, 2019
Q
Using this Interface can you add only a subwoofer amp while retaining the rest of the system? Will/can the Mids and Highs still function on the factory amp? Only thing I want to upgrade is a Subwoofer setup with amp.
jared  May 09, 2019
5 answers
A
Yes, that is exactly what I did. I will be adding another amplifier at another time.
edward  May 25, 2019
A
Yes you can, this is the best way to do that as it give a true 5v or 4v pre amp output to aftermarket amp. Also a clean 20hz to 20khz signal, with no bass roll off. This will also allow you to adjust bass/mid/treble center frequency and "Q" factor. PAC & Crutchfield customer service is top notch if you have install issues as well.
brandon  May 25, 2019
A
Yes you can, just follow the wiring diagram that comes with it and leave those speakers hooked up to the original amp. I left my three dash speakers hooked up to the original amp so that my navigation would still come through them.
don  May 24, 2019
A
This may not be a direct answer but it's what i was given and was glad i was convinced. The nice folks at crutchfield advised me to replace mids highs and the amp along with the new sub w/ amp. They said I won't be satisfied with only replacing sub and amp. Like I said I'm glad I did as my truck is transformed as the way I want it to sound now: You're spending the money so do it right . I also went away with the dash speakers and installed kenwood 7" mids for the door and put tweeters in the little door jam. If you want I can email you what I did
will  May 24, 2019
A
If you have the factory amp 5 channel it won't work
stella  May 24, 2019
Q
How long is 1) the wiring harness, 2) the volume control knob wire? Thanks.
timothy  Dec 19, 2018
5 answers
A
This harness connects to the head unit and the factory harness. It's about 16".
william  Dec 20, 2018
A
I think the head-unit to PAC AmpPro harness is about 18" and the remote volume knob is about 3'. I mounted the interface in the dash to the right of the head-unit and ran the knob down under the steering column on a 2016 Dodge Challenger.
dale  Dec 19, 2018
A
The wiring harness is roughly 14 to 16 inches pulled taught. Connected to everything it coils up nicely. If I remember correctly the volume control knob was 18 inches long. No more than 3ft though. I installed mine in the glove box, so there was plenty of slack. Great buy. I run two amps. 1@ 2600 watts for S.A. 12"s and the other runs two sets of components I installed as well. Hope this helps.
ryan  Dec 19, 2018
A
The wiring harness is plenty long~18" or so. The Volume control knob is not for volume but for bass level of the subwoofer. The cable is ~6' if memory serves correctly.
craig  Dec 19, 2018
A
Wire harness is approximately 18 inches long maybe a little longer and the volume control wire is between 3 and 4 ft. I do not remember exactly but it is pretty long.
adrian  Dec 19, 2018
Q
If I use this in 2015 Charger with Beats can I replace the factory speakers with component speakers and use the included crossover, or do I have to use 2 or 3 way speakers?
todd  Nov 10, 2018
1 answer
A
You will want to contact an Advisor by phone (1-800-324-9695) or online chat to discuss compatibility with your factory system. They will be able to pull up your vehicle and see if this will integrate as well as the other options that would be available.
kenneth  Nov 10, 2018 (Staff)
Q
Does this get rid of the bass roll off at higher volumes?
shawn  Jul 28, 2018
1 answer
A
Yeah. Zero distortion pending you have your gains and frequencies setup right.
jeff  Jul 31, 2018
Q
I have a 2016 Dodge Challenger Hellcat with the Harman Kardon stereo. How does this unit deal with the center channel? Does this unit put out full range signals to the right/left/front/back outputs? If I decide to use the TOS link instead of the RCA cables, are the output options the same? thanks!
thomas  Jul 17, 2018
2 answers
A
I have a 2015 Dodge Ram crew cab with the 8.4 Uconnect, which is a Harman Kardon touch screen head unit, and the 9 speaker Alpine system. I used this device to basically get four full range RCA speaker outputs, front and rear, left and right. As far as my aftermarket subwoofer I let the amplifier crossover and gain control it, a Alpine PDX v9 5-channel amplifier with subwoofer remote. This device doesn't help you with the center Channel, I left mine hooked up to the factory amplifier, which I can barely hear over my new aftermarket system. And from the research I've done the toslink performs the same way as the RCA cables but I do not use the toslink at this point. So far this device works as advertised and with a laptop you can make changes to your equalizer frequencies and is firmware upgradeable with no loss of parking chime alerts or voice navigation prompts. After hours of research I came to the conclusion that this was the best way to sum the signals and achieve full range outputs for a aftermarket amplifier, due to the complexity of these newer Chrysler premium audio systems. Good luck and I hope this helps
james laurent  Jul 18, 2018
A
On the Challenger I installed this on it had the sound group II audio without the center channel, but this is an inline "T" device and should continue to work with the factory amp and center channel should get the signal from the factory amp. This unit puts out variable volume full range signals over the RCA's for the left / right / front / back with additional left and right for the sub if you use a 6 channel amp. I am not using the TOS link but I believe the documentation says it is only 2 channel which is intended for other digital processors before being connecting to amps. I think the instructions also say to leave the factory amp installed or it will not work right.
dale  Jul 17, 2018
Q
So I take it this will work with 2017 challenger with 6 speaker alpine?
matthew  Jun 15, 2018
4 answers
A
Works perfectly with a clean signal output and no noise.
robert  Jun 16, 2018
A
Yes, it will work.. and it's easy to install..
adrian  Jun 16, 2018
A
Yes..I have 2017 charger with 6 speaker..works great.
rowland  Jun 16, 2018
A
It works well with my Jeep but what you could do to be on the safe side is go to the pac website and it tells you which cars it's compatible with
luis  Jun 16, 2018
Q
I'm interested in an aftermarket amp and and subwoofer for a 2016 Chrysler 300C and want to avoid cutting any wires and losing factory system functionality, if possible. Will this module allow me to upgrade the factory amp, add a subwoofer and keep all Chrysler functions? Thank you.
curtis  Jun 03, 2018
1 answer
A
As long as your '16 Chrysler 300c is equipped with a data-bus controlled factory premium sound system, the PAC AmpPRO AP4-CH41 adapter will allow you to add an aftermarket amp while retaining the original radio's fit, finish, and features. For more details or to discuss further please contact an Advisor directly by phone (888.955.6000) or online chat. Thanks!
david  Jun 11, 2018 (Staff)
Q
What are the trade-offs when using in a 2106 Dodge Durango w Beats premium audio? Will phone calls use all the same speakers, or just center channel?
bruce  Aug 23, 2017
1 answer
A
Any speakers still connected to the stock amp will continue to work. This piece will get the Bluetooth audio as well and typically mixes that to the LF speaker. Feel free to contact an advisor on 1-800-324-9695 for personal recommendation on a system My Bio: http://www.crutchfield.com/Support/Bio.aspx?bio=101
jason  Aug 28, 2017 (Staff)
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