About the CRUX SOOFD-27B Wiring Interface
What's in the box:
CRUX SOOFD-27B Wiring Interface owner's manual
If you need assistance accessing this owner's manual, please give us a call.- Radio replacement interface module
- Wiring harness
- Installation Instructions
Other info:
- MFR # SOOFD-27B
- Item # 249FD27B
- California customers: Please click here for your Proposition 65 WARNING.
More details on the CRUX SOOFD-27B Wiring Interface

Product Research
Features
Radio Replacement Interface: The CRUX SOOFD-27B radio replacement interface facilitates the integration of an aftermarket head unit to enable retention of factory features (such as Aux input & RAP) when replacing the factory installed radio in select 2011-2019 Ford vehicles with a non-amplified factory audio system.
- Aux Input Retention: The CRUX SOOFD-27B will retains your vehicle's factory Aux input (if equipped), if your new aftermarket head unit offers a rear-panel Aux input. A stereo RCA to minijack adapter (sold separately) may be required.
- Retained Accessory Power (R.A.P.): The ignition power source of many Ford/Lincoln/Mercury vehicles keeps the radio on until one of the doors is opened. This feature is called the R.A.P. (retained accessory power). The CRUX SOOFD-27B is designed to retain this feature.
Notes:
- Does not retain factory steering wheel controls.
- Does not retain SYNC.
Vehicle Compatibility: The CRUX SOOFD-27B is supported by the following 2011-2019 Ford vehicles with a non-amplified factory audio system.
Make | Model | Year | |
---|---|---|---|
Ford | Escape | S Trim | 2019 |
w/ 4.2" color screen | 2013-2018 | ||
F-250/350/450/550 | w/o 4.2" color screen | 2017-2022 | |
Fiesta | All trims | 2011-2013 | |
w/o 6" MyFord touchscreen radio | 2014-2015 | ||
w/o 6" SYNC 3 Radio | 2016-2019 | ||
Focus | w/o 6" MyFord touchscreen radio | 2012-2014 | |
Transit | w/ CD player and w/o NAV | 2015-2018 | |
Transit Connect | w/ CD player and w/o NAV | 2015-2018 |
The CRUX SOOFD-27B Wiring Interface replaces these items:

Axxess XSVI-5524-NAV Wiring Interface
- connect a new car stereo to the factory plug in select 2011-up Ford vehicles
- retains 12-volt accessory connection and Retained Accessory Power (RAP) if present
- offers Vehicle Speed Sensor (VSS), parking brake, and reverse outputs for installing a navigation receiver
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Customer Q&A
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Useful if slightly confusing. The labels on the harness wires and connections didn't always match the wiring diagram included in the box.
Joshua from Goffstown, NH