This is a Ford Focus Stereo Wiring diagram that will help you install or repair your radio. Whether you are a professional stereo installer or weekend warrior who likes to do it yourself, our guide can help you get the job done. This wiring guide can help you re-install your factory radio or an aftermarket stereo into your Ford Focus.
Today I will be showing you how to wire in any device or stereo into your Ford Focus. There’s three generations of Focus we will be covering. Because of the center console and radio setup of the Ford Focus, you are best off purchasing a install kit when you want to upgrade.
1998–2004 Ford Focus Stereo Wiring
Our wiring section at My Pro Street is dedicated to wiring schematics for your Ford. Our complete catalog of car audio wiring diagrams is completely laid out for you to use. The Ford Focus car wiring diagram listed on this page can help you enjoy your new or used radio, instead of wasting time looking up the wiring for your Focus
As stated earlier if you are installing a new or aftermarket stereo into your Focus, you will need a install kit like the one shown above. These install kits provide a plastic trim that your stereo will easily slide into.
Car Radio Battery Constant 12v+ Wire: Yellow/Green
Car Radio Accessory Switched 12v+ Wire: Orange/Green
Car Radio Ground Wire: Black/Green
Car Radio Illumination Wire: Orange/Black
Left Front Speaker Positive Wire (+): White/Black
Left Front Speaker Negative Wire (-): Gray/Black
Right Front Speaker Positive Wire (+): White/Red
Right Front Speaker Negative Wire (-): Gray/Red
Left Rear Speaker Positive Wire (+): White/Green
Left Rear Speaker Negative Wire (-): Gray/White
Right Rear Speaker Positive Wire (+): White
Right Rear Speaker Negative Wire (-): Gray
2004–2010 Ford Focus Stereo Wiring
The second gen Ford Focus has very similar car stereo wiring to the first generation. There are two exceptions however that you must be aware of. The second generation Focus Stereo Wiring uses the switched 12 volt accessory through the car’s CAN data network. This wire is a GRAY wire with a ORANGE stripe, or a VIOLET wire with an ORANGE STRIPE.
Also you will need to wire the Focus Stereo Wiring illumination through the GRAY wire with an ORANGE stripe, or a VIOLET wire with an ORANGE STRIPE. Like the 12 volt accessory, the Focus Stereo Wiring illumination is controlled through the CAN data network.
Car Radio Battery Constant 12v+ Wire: White/Red – Car Radio Battery Constant 12v+ Wire: White/Red
Car Stereo Antenna Trigger Wire: Black
Car Stereo Amp Trigger Wire: Violet/Red
Left Front Speaker Positive Wire (+): White
Left Front Speaker Negative Wire (-): White/Brown
Right Front Speaker Positive Wire (+): White/Violet
Right Front Speaker Negative Wire (-): White/Orange
Left Rear Speaker Positive Wire (+): White/Green
Left Rear Speaker Negative Wire (-): Brown/Yellow
Right Rear Speaker Positive Wire (+): Brown/White
Right Rear Speaker Negative Wire (-): Brown/Blue
2010–2015 Ford Focus Stereo Wiring
The third generation Focus features a highly restyled dashboard. This factory stereo is nestled into a molded dash, so upgrading is slightly more complicated. Like the generations before this one, the third gen Focus needs an car stereo radio install kit.
Most install kits require you to replace the center console, or change out the factory Focus navigation unit.
Car Radio Battery Constant 12V+ Wire: Brown/Red
Car Radio Ground Wire: Black/White
Car Radio Antenna Trigger Wire: Yellow/Orange
Left Front Speaker Negative Wire (-): White/Brown
Right Front Speaker Positive Wire (+): White/Violet
Right Front Speaker Negative Wire (-): White/Orange
Left Rear Speaker Positive Wire (+): White/Green
Left Rear Speaker Negative Wire (-): Brown/Yellow
Right Rear Speaker Positive Wire (+): Brown/White
Right Rear Speaker Negative Wire (-): Brown/Blue
That does it for our Focus Stereo Wiring writeup. Have any questions about this guide? Leave us a message below and let us know!