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PAC FD1A-RSX Wiring Interface

Install a New Car Stereo and Retain Steering Wheel Controls and Other Factory Features in select 2005-2016 vehicles from Ford, Lincoln, Mercury

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• Direct connection to the factory harness
• Compatible with select 2005-2016 vehicles from Ford, Lincoln, Mercury
• Retains SWC, RSE, RSC, and THX or Sony amplifier
• Color coded wires for easy installation
• No cutting or splicing required

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List price $299.99
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Description


PAC brand icon

Authorized dealer

RadioPRO Advanced Interface for Ford/Lincoln

The PAC FD1A-RSX is a high-level radio replacement interface designed specifically for Ford and Lincoln vehicles equipped with 24-pin and 8-pin connector systems. Part of the RadioPRO Advanced series, this module is engineered to seamlessly integrate a new aftermarket stereo into the vehicle's complex data bus. It ensures that critical factory features—like steering wheel controls, factory-amplified systems, and warning chimes—remain fully functional after the radio upgrade.

The FD1A-RSX acts as a communication bridge, providing vital data-controlled outputs for your new head unit, such as accessory power (RAP), reverse signal, parking brake, and vehicle speed sense (VSS). It is designed to work with both non-amplified and factory-amplified audio systems (including Sony or THX systems) while maintaining the integrity of the vehicle's data network. The interface is also field-updatable via a micro-USB port, ensuring compatibility with the latest firmware and vehicle software updates.

Product Features:

  • Compatible with select 2005-2016 vehicles from Ford, Lincoln, Mercury
  • Compatible with non-amplified and amplified models
  • Compatible in base model trucks with center stack stereo
  • Also compatible in base model trucks with double DIN stereo
  • Factory amplified systems will not fade as neither the aftermarket stereo
  • Designed to install a new aftermarket car stereo
  • Provides data bus driven outputs
  • Provides retained accessory power (RAP)
  • Provide vehicle speed sensor (VSS)
  • Provides illumination, reverse trigger, and parking brake
  • Retains steering wheel controls (SWC)
  • Retains rear seat entertainment (RSE) and rear seat control (RSC)
  • Retains THX or Sony amplifier when original stereo is removed
  • Programs 2 stereo functions to each SWC button
  • Plug and play connection, no cutting or splicing required
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Note: Not compatible with model trim XL (fleet vehicles). Does not retain SYNC function.

Product history:

PAC FD1A-RSX thumbnail
(newest, current model)
PAC RP4-FD11 thumbnail
(previous model, replaced by PAC FD1A-RSX Wiring Interface)

Compatible Vehicles


Please use our Fitment Guide to determine specific compatibility for the submodel and audio features

The vehicle you have selected 2006 Cadillac Escalade is not compatible. Change vehicle or See list of compatible similar products


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Specifications & Details


Harness Features
Main Harness Function
Install Aftermarket Car Stereo & Retain Steering Wheel Controls
Additional Harness Features
Provides Parking Brake & Reverse Signals
Provides Vehicle Speed Sense
Retained Accessory Power (RAP) Retention
Retains Rear Seat Entertainment
Retains Steering Wheel Controls
Premium Harness Features
Factory System Amplification
Amplified
Non-Amplified
On-Star Compatible
No
CAN-BUS Compatible
Yes
GM-LAN Compatible
No
Compatible with Aftermarket Navigation Systems
Yes
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Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
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Item Details


Manufacturer:

PAC

Model Number:

FD1A-RSX

Weight:

1.00lb

Internal SKU:

fd1arsx

Internal Product ID:

230939

Customer Ratings & Reviews


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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.