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PAC RP4-AD11 Wiring Interface

Connect a new car stereo and retain factory steering wheel audio controls and factory amp in select 2004-2013 Audi vehicles

Item # 541RP4AD11

PAC's RP4-AD11 wiring interface lets you replace the factory radio in select 2004-13 Audi vehicles with...

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PAC's RP4-AD11 wiring interface lets you replace the factory radio in select 2004-13 Audi vehicles with...

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Item # 541RP4AD11

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$105.99
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About the PAC RP4-AD11 Wiring Interface

PAC RP4-AD11 

PAC's RP4-AD11 wiring interface lets you replace the factory radio in select 2004-13 Audi vehicles with or without factory amplified systems. You'll retain your factory steering wheel audio controls and the use of your factory amplifier and subwoofer (if present). The interface also supplies the databus-driven output you'll need to keep your retained accessory power (RAP), as well as the outputs you'll need to install a navigation receiver. 

PAC RP4-AD11 

PAC's RP4-AD11 wiring interface lets you replace the factory radio in select 2004-13 Audi vehicles with or without factory amplified systems. You'll retain your factory steering wheel audio controls and the use of your factory amplifier and subwoofer (if present). The interface also supplies the databus-driven output you'll need to keep your retained accessory power (RAP), as well as the outputs you'll need to install a navigation receiver. 

Important Note: When you install a new car stereo, you'll lose the ability to fade from front to rear if you have the Bose or Symphony audio system.

Please enter your vehicle information or call an Advisor at 1-888-955-6000 to find out if this model is compatible with your vehicle.

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Product highlights:

  • install an aftermarket receiver in select 2004-15 Audi vehicles
  • works with amplified and non-amplified systems
  • retains your steering wheel audio controls and factory amplifier and sub (does not retain fader)
  • supports RAP (Retained Accessory Power); provides a 12-volt switched accessory output
  • supplies VSS (Vehicle Speed Sensor), illumination, reverse trigger, and parking brake outputs for navigation receivers
  • warranty: 1 year
  • Our 60-day money-back guarantee
  • MFR # RP4-AD11

What's in the box:

  • Radio replacement module (for Audi)
  • Wiring harness (RP4-AUDI11-HAR-A)
  • Wiring harness (RP-AUDI11-HAR-B)
  • SWC harness
  • Instructions

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PAC RP4-AD11 Wiring Interface reviews

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PAC RP4-AD11 Wiring Interface

Crutchfield customer from Lake Stevens, WA on 7/21/2019

2008 Audi TT

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Verified employee purchase (What's this?)

This kit came with 2 possible factory connector options, so I did not purchase Crutchfield's offer to connect the wires. I opted to shorten several of the connections to clean up the harness. Easy directions to follow to make everything work as designed!

Pros: Easy directions to connect system

Cons:

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PAC RP4-AD11 Wiring Interface

Crutchfield customer from East Wenatchee, WA on 6/11/2019

2008 Audi A4

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Awesome plug and play

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PAC RP4-AD11 Wiring Interface

Paul from Lexington, KY on 5/19/2019

2008 Audi TT

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Just what was needed to keep the steering wheel controls

Pros:

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Plug and play, easy stuff

Jeff from Columbia, MO on 1/18/2019

2007 Audi A4

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Plug and play!

Pros: Plug and Play

Cons: None

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PAC RP4-AD11 Wiring Interface

Crutchfield customer from Dover, NH on 1/16/2019

2008 Audi A4

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So easy, worth every cent!!! 15 min total install, 08 A4 Audi

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PAC RP4-AD11 Wiring Interface

Richard L from Weston, WV on 1/2/2019

2008 Audi A4

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Not a bad product, how ever the wiring harness is not complete, if i would have known i wouldn't have brought it. 08 Audi A4

Pros:

Cons:

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0 of 1 found this helpful

Wiring interface works great!

Crutchfield customer from Poway, CA on 10/24/2018

2006 Audi A4

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Easy to wire up, instructions were fairly clear and steering wheel controls worked after install with a Kenwood Receiver in a 2006 Audi A4. The only issue I had was with the head unit itself and not this kit. I felt bad about throwing out the alternate wiring harness as I know that's tied into the overall cost but I can understand the confusing mid-year OE wiring changes.

Pros: Easy to install Decent instructions Good quality wires

Cons: Processing box is flimsy

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PAC RP4-AD11 Wiring Interface

Crutchfield customer from Stamford, CT on 9/7/2018

2007 Audi A4

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Went together with the Audi harness perfectly.

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More details on the PAC RP4-AD11 Wiring Interface

Stacey B.

Product Research

Features

Radio Replacement Interface (for Audi): The PAC RP4-AD11 interface allows the replacement of a factory radio in select Audi vehicles. Using this interface will retain factory features such as the factory amplifier and steering wheel controls, as well as RAP (Retained Accessory Power) and warning chimes. The RP4-AD11 also provides data controlled outputs, such as a 12V accessory output and navigation outputs.

Vehicle Compatibility: The RadioPRO 4 RP4-AD11 is compatible with the following 2004-2015 Audi vehicles.

Make Model Year
Audi A3 2008-2010
A4 2004-2009
A6 2004
TT 2008-2015

Factory Amplifier & Sub: The PAC RadioPRO RP4-AD11 will retain your Audi's factory amplifier (Bose or Symphony) & factory subwoofer. However, this interface will not support fading of the factory amplified audio system. The interface features RCA connectors that plug into your aftermarket radio's front & rear channel pre-outs. The RP4-AD11 will also work in vehicles without a factory amplified audio system.

Note: The RP4-AD11 comes with two harnesses - one for factory amplified audio systems and one for factory non-amplified audio systems (you will only use one of these harnesses).

Programmable SWC: The interface comes pre-programmed for all of the vehicle's factory SWC functions and does not require programming, unless you wish to re-assign the SWC functions to different buttons or create secondary functions. Use of this interface also allows you to program two radio functions to each SWC button by using short press/long press dual command functionality. The SWC functions can be easily programmed; see default SWC button assignments and programming options in the included Instructions.

  • The blue/yellow wire of the SWC harness can be used with Kenwood and newer JVC aftermarket head units that features a blue/yellow SWC wire.
  • The 3.5mm jack of the SWC harness can be used with Alpine, older JVC, Clarion, Jensen, Pioneer, Sony, &  Dual/Axerra aftermarket head units with a 3.5mm SWC input.
Note: The radio select rotary switch on the side of the interface must be adjusted to the proper radio setting before plugging the interface into the vehicle. See Instructions for the appropriate settings.

Retained Accessory Power (R.A.P.) & Warning Chimes: The ignition power source of many Audi vehicles keeps the radio on until one of the doors is opened. This feature is called the R.A.P. (retained accessory power). The RP4-AD11 will retain this feature, as well as factory warning chimes.

Data Controlled Outputs: The RP4-AD11 provides data controlled outputs, such as a 12V accessory output and navigation outputs, to make installation of an aftermarket head unit simpler and less time consuming.

  • +12V Accessory Output: In many Audi vehicles, there is no 12-volt accessory wire in the factory harness, which requires the installer to run an accessory wire to the fuse box or underneath the steering column when installing an aftermarket radio. PAC's RP4-AD11 is designed to provide a data controlled +12V switched accessory output (red wire).
  • Navigation Outputs: The PAC radio replacement interface provides data controlled outputs for navigation radio installation; including a VSS (vehicle speed sense), Parking Brake, and Reverse Gear output. This makes installing an aftermarket navigation head unit simpler and less time consuming.

Programmable +12V Output: The Red/White wire on the interface can be programmed via the RadioPRO app to provide a pulsed or latched 12v output which can then be assigned to any of the vehicle's factory SWC buttons. When assigned, the factory SWC button will activate the pulsed or latched output to control external accessories

RadioPRO App: PAC offers a Windows compatible RadioPRO App software program to help you configure the interface. Use of the RadioPRO App allows you to do the following.

  • Aftermarket radio Parking Brake Sequencing
  • Adjust warning chime volume level
  • Update Product Firmware
  • Read Firmware/Hardware Versions
  • Access Product User Manuals
Note: The interface must be connected to the vehicle and your Windows laptop when using the RadioPRO App.

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Customer Q&A

Q
Crutchfield asked: Why did you buy this?
A
I need it [ ANTONIO D  Jun 17, 2019 ]
A
Because I wanted install to be easy and right [ Michael  Jan 13, 2019 ]
A
Ease of installation [ Orlando  Oct 01, 2018 ]
A
Need it [ THOMAS  Sep 22, 2018 ]
A
to make it easier on the installer [ Michael  Jul 04, 2018 ]
A
needed for my car [ Michael  Jun 06, 2018 ]
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