2012 Ford Focus Radio Wiring

Printed From: the12volt.com
Forum Name: Vehicle Wiring Information & File Requests
Forum Discription: Request Car Alarm, Car Stereo, Cruise Control, Remote Starter, Navigation, Mobile Video, and Other Vehicle Specific Wiring Info, Manuals, Tech Tips
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=133779
Printed Date: May 04, 2025 at 4:19 AM

Topic: 2012 Ford Focus Radio Wiring

Posted By: old_skool
Subject: 2012 Ford Focus Radio Wiring
Date Posted: March 05, 2013 at 3:01 PM

Done a lot of searching but could not find any information. I have RCAs and remote wire ran to factory radio. I am looking for speaker color codes and switched 12v at radio. Please assist.

Thanks,
Ryan

Replies:

Posted By: offroadzj
Date Posted: March 05, 2013 at 6:51 PM

Do you have the base audio system, premium system, or the Sony 10 speaker system?

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Kenny
Owner / Technician
KKD Garage LLC
Albany, NY 12205

Posted By: offroadzj
Date Posted: March 05, 2013 at 6:53 PM

This should at least get you started. Test and verify everything before making any connections. I would also suggest using the amp turn on rather than the switched. Otherwise if you have the radio turned off, the amp will stay on and could cause distortion. Also, how do you plan on connecting the RCA's to the amp?

Battery BROWN / RED (+) RADIO, PIN 1 OF 24 PIN PLUG
     Accessory DATA
     Ground BLACK (-) RADIO, PIN 13 OF 24 PIN PLUG
     Illumination BROWN (WITHOUT SYNC) (+) RADIO CONTROLS, PIN 3 OF 8 PIN PLUG
     Power Antenna YELLOW/ORANGE (+) RADIO, PIN 2 OF 24 PIN PLUG
     Amp Turn On YELLOW/PURPLE (+) RADIO, PIN 18 OF 26 PIN BLACK PLUG
     LF Speaker (+) WHITE
     LF Speaker (-) WHITE/ BROWN
     RF Speaker (+) WHITE/ PURPLE
     RF Speaker (-) WHITE/ ORANGE
     LR Speaker (+) WHITE/ GREEN OR BROWN / GREEN
     LR Speaker (-) BROWN / YELLOW
     RR Speaker (+) BROWN / WHITE
     RR Speaker (-) BROWN / BLUE
     Amp Location RIGHT SIDE OF CARGO COMPARTMENT

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Kenny
Owner / Technician
KKD Garage LLC
Albany, NY 12205

Posted By: old_skool
Date Posted: March 06, 2013 at 2:51 AM

I am installing just a amp and sub. I believe it is the premium system (it's my brothers car, not mine). I am going to use a line out converter for the speaker to RCA conversion. Is the wiring specs you provided for a base model?

Thank you so much for your help. I couldn't find this anywhere.

Posted By: offroadzj
Date Posted: March 06, 2013 at 9:01 AM

I think it's the same for the premium but here it is in case:
     Battery BROWN / RED (+) RADIO HARNESS
     Ground BLACK/ WHITE (-) RADIO HARNESS
     Power Antenna YELLOW/ORANGE (+) RADIO HARNESS
     LF Speaker (+) WHITE
     LF Speaker (-) WHITE/ BROWN
     RF Speaker (+) WHITE/ VIOLET
     RF Speaker (-) WHITE/ ORANGE
     LR Speaker (+) WHITE/ GREEN
     LR Speaker (-) BROWN / YELLOW
     RR Speaker (+) BROWN / WHITE
     RR Speaker (-) BROWN / BLUE

The location is not listed for the speaker wires so it is possible that they are only at the speakers themselves. Where are the rear speakers in that? If you can't find the wires at the back of the radio, you might be able to find them coming from the rear speakers (or the rear door harness if the speakers are in the doors).

Either way, make sure to test everything before making ANY connections. These wire diagrams aren't always correct.
This one is from techservices.audiovox.com. As far as I know it's free to register (was for me when I did it years ago; not sure if it changed since then).

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Kenny
Owner / Technician
KKD Garage LLC
Albany, NY 12205