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Monday-Friday:
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Saturday-Sunday:
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Lunes a viernes:
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Estamos disponibles 5 días a la semana
Looking for International Support?
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985 902 205 5

Shop smart & save time when you connect with an advisor

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PAC RP3-GM13 Wiring Interface Allows you to connect a new car stereo and retain the factory amp in select 2000-05 Buick, Oldsmobile, and Pontiac vehicles

PAC

Item # 541RP3GM13

PAC's RP3-GM13 interface allows you to replace the radio in your 2000-2005 Buick, Oldsmobile, or Pontiac.

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Only at Crutchfield. No pressure. And no commissions! Our experts help you get what you need and will never upsell you. No sweat. We do the research, so you get the best info, the best instruction, and the best tech support. All for free. No regret. With 60-day price protection and returns, you can feel good about your purchase – or send it back. Legendary Service. Since 1974.
PAC RP3-GM13 Wiring Interface Front
PAC RP3-GM13 Wiring Interface Other
PAC RP3-GM13 Wiring Interface Only at Crutchfield

PAC's RP3-GM13 interface allows you to replace the radio in your 2000-2005 Buick, Oldsmobile, or Pontiac.

Item # 541RP3GM13

Every order includes

  • Free lifetime tech support
  • 60-day price-drop protection
  • 60-day returns
In stock
$89.99
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About the PAC RP3-GM13 Wiring Interface

What's in the box:

Other info:
  • MFR # RP3-GM13
  • Item # 541RP3GM13
  • California customers: Please click here for your Proposition 65 WARNING.

More details on the PAC RP3-GM13 Wiring Interface

Stacey B.
Researched by Crutchfield's Stacey B.

Product Research

Features

Radio Replacement Interface: The PAC RP3-GM13 interface allows aftermarket head unit replacement of the factory radio in select General Motors (GM) vehicles with a Class II databus and harness dock system. Using this interface will retain factory features such as the factory amplifier, retained accessory power (RAP), Warning Chimes, and steering wheel controls (additional adapter required).

Note: The PAC RP3-GM13 does not retain factory OnStar.

Vehicle Compatibility: The  The PAC RP3-GM13 is compatible with the following 2000-2005 GM vehicles featuring a Class II databus and harness dock factory system.

Make Model Year
Buick LeSabre 2000-2005
Oldsmobile Aurora 2001-2003
Pontiac Bonneville 2000-2005

Factory Amplified & Non-Amplified System Compatible: The PAC RP3-GM13 is compatible with Bose amplified and non-amplified factory audio systems. It will retain balance & fade control for factory Bose amplifiers (if applicable).

Retained Accessory Power (R.A.P.): The ignition power source of most GM vehicles keeps the radio on until one of the doors is opened. This feature is called the R.A.P. (retained accessory power). The PAC RP3-GM13 is designed to retain this feature.

Warning Chimes: The PAC RP3-GM13 radio replacement interface will retain your vehicle's important factory warning chimes.

Steering Wheel Controls: The PAC RP3-GM13 will retain your vehicle's factory steering wheel controls with the use of an aftermarket head unit with a SWC input and PAC's SWI-RC steering wheel control interface adapter (541SWIRC, sold separately).

Navigation Outputs: The PAC radio replacement interface provides a VSS (vehicle speed sense), Parking Brake, and a Reverse Gear output to make installing an aftermarket navigation radio simpler and less time consuming.

RadioPRO App: PAC offers a Windows compatible RadioPRO App software program to help you configure the interface.

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Customer Q&A

9 questions already asked

Q
I cannot get the keyswitch to turn the radio off and on, it does not specify what wire on the aftermarket harness is keyswitch. When I have it plugged in the radio is constantly on?
kaden  Jun 06, 2025
1 answer
A
We have technical support here that can help troubleshoot issues like this one. We include their toll free phone number on the shipping label on the box as well as on the order invoice and recommend giving them a call
jason  Jun 06, 2025 (Staff)
Q
What wire on the RP3-GM13 harness is the aftermarket amp wire? There like 4 blue wires. The aftermarket head unit calls for the blue and white wire to be used but the harness has too many to choose from. Thanks in advance.
bryan  Apr 15, 2025
1 answer
A
You will want to connect to your aftermarket radio's harness for the amplifier turn-on wire and not the PAC RP3-GM13 interface, Bryan. Most aftermarket radios feature a wire labeled for amplifier turn-on, refer to the owner's manual for the wiring details specific to your aftermarket radio.
bo  Apr 15, 2025 (Staff)
Q
I installed it on Bonneville 05 with the steering wheel control SWI-CP2 but the buttons don't seem to work right. The CP2 manual said this GM13 has to be on firmware version 5. How do I know what version of the firmware I'm on?
tawatos  Jan 03, 2023
1 answer
A
We are always here to help, Tawatos. On the CP2 if you are having issues with button control, first try the manual programming mode. This starts on the lower part of page 2 in the install instructions. Set your dipswitches correctly for your Alpine iLX-650 radio (1 down, 2,3, and 4 up) then proceed through the manual map procedure on page 3. It's always a good idea to make sure the 3.5mm SWC plug is connected firmly as well to the Alpine radio. If you are still having issues after that, give our Technical Support agents a call at 1-888-292-2575, we provide lifetime Technical Support on every order and are always here to help!
bo  Jan 03, 2023 (Staff)
Q
I have a 2003 bonneville sle. I have a RP3-GM13 interface and a SWI-CP2 for my swc I have everything working properly but cannot get my swc to work and any help from you guys would be very helpful on what I need to do to make it work?
justin  Dec 06, 2022
1 answer
A
Greetings Justin, and thank you for your question. This would be more technical support related. If you purchased the PAC harness's from Crutchfield your shipping confirmation email will have a direct number to phone into our technical services. If you purchased the harness's elsewhere, I would have to refer you to contact AC at 727-592-5991.
thomas  Dec 06, 2022 (Staff)
Q
I installed a pioneer double din in my 03 lesabre and now I have a check engine light, air bag light a d a security light. The dome lights stay on, and I have to disconnect the battery., hook it up and start the car before it commonucats to tell the car not to start. What gives?
william  Jul 05, 2022
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.
zachary  Jul 05, 2022 (Staff)
Q
I have a 2003 Pontiac Bonneville SSEI with OnStar and a factory Momba amp. When the harness is plugged in to the new pioneer double din the double din itself and the door chime work but I have NO SOUND. How do I get the sound from the radio to work on the speakers instead of playing music without sound coming through?
zakary  May 19, 2022
2 answers
A
I didn't think to ask if you had sound before the new head unit? If you haven't checked yet check the fuse box under the rear seat, driver side. The fuse for the amp is in there. It is one of the large maxi fuses (20a).
duston  May 29, 2022
A
First make sure your blue/white wire from you Pioneer is NOT connected to the blue wire on your harness. If that is not the case there will be a pink wire on the back of your factory harness. Jump a wire from your Pioneers blue/white to your factory pink wire.
duston  May 20, 2022
Q
I hooked up my harness and the radio screen is coming on but I have absolutely no sound?
timothy  Apr 08, 2022
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 and connections 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  Apr 11, 2022 (Staff)
Q
How do I know if my 05 Pontiac Bonneville has a factory Amp? It does have OnStar.
vanessa  Mar 25, 2021
2 answers
A
There will be an amp in the trunk, on the driver's side, on the back of the seat behind the cover panel that will say Monsoon. It's takes up a good amount of space.
duston  Mar 26, 2021
A
From my research you can have OnStar without an amp. It seems that the determining factor is the optional Bose Stereo. No Bose, no amp from what i have found
philip  Mar 25, 2021
Q
I have a 2001 Pontiac Bonneville. In speaking with a Crutchfield representative, I was told that if my vehicle had Bose speakers or an amp behind the rear passenger seat in the trunk, it was likely that I needed this (as opposed to the Metra GMRC-04 Wiring Interface). Problem is that I don't appear to have Bose speakers, but Panasonic, and I do have some sort of a device in the trunk, but it doesn't look to big enough to be an amp. Also, I can choose either 4 or 8 speakers as my car additional features, but my car has 6 (none in the rear doors, but tweeters in the front door opposite of the external mirrors). So confused if I need this or the other referenced above? Please advise. Thanks!
jason  Jun 12, 2016
1 answer
A
The metra has the dinger (when you open the door & key left in). I have 01 bonneville le & bought this adapter: it hooks right into the factory harness as the factory harness just pulls out of the back of factory radio if I remember right. I know the metra works & I have neither Bose not an amplifier. Let me know if you need anything else.
joel  Jun 13, 2016
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PAC RP3-GM13 Radio interface
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