Here is the stereo radio wiring information for your 2012 Volkswagen Jetta MK6 body with the standard or amplified systems. It will be useful when installing an aftermarket radio, sound stereo system, or other automotive accessories. Make sure to grab the appropriate tools to test all the wires in your Jetta. Please check it over and use it as a GUIDE to help you locate the appropriate wires. This schematic is provided free of charge and may not be 100% accurate. Failure to properly test all the wires may lead to vehicle or bodily damage. All information is provided as-is and accuracy is not guaranteed.
If you find any conflicting info please leave a comment with what you found in your MK6 VW Jetta. If you don’t see the audio radio wiring diagram you need comment and we will try to add it ASAP. Thanks for looking!
2012 VW Jetta Audio Wiring Radio Diagram Schematic Colors
Car Radio Constant 12v+ Wire: Red/Yellow
Car Stereo Ground Wire: Brown
Car Radio Ignition Switched Wire: Not at Radio – Use the adapter found below OR connect at the driver underdash fusebox:
Car Stereo VSS Speed Wire: Data see below
Car Stereo Reverse Wire + : Data see below
Car Stereo Dimmer Wire: Data see below
Car Radio Illumination Wire: Connect at lighted cigarette lighter
Car Stereo Power Antenna: Built Into Antenna Adapter (See Below)
Car Radio Amp Turn On Wire: N/A
Left Front Speaker Wire (+) Positive: Brown/Green
Left Front Speaker Wire (-) Negative: Brown/Blue
Right Front Speaker Wire (+) Positive: Brown/Red
Right Front Speaker Wire (-) Negative: Brown/Black
Left Rear Speaker Wire (+) Positive: Red/White
Left Rear Speaker Wire (-) Negative: Brown/White
Right Rear Speaker Wire (+) Positive: Red/Purple
Right Rear Speaker Wire (-) Negative: Brown/Purple
SPEAKER WIRE COLORS AT THE SPEAKERS IN THE DOORS
Left Front Door Speaker Wire (+) Positive: Red/Blue
Left Front Door Speaker Wire (-) Negative: Brown/Blue
Right Front Door Speaker Wire (+) Positive: Red/Blue
Right Front Door Speaker Wire (-) Negative: Brown/Blue
Left Rear Door Speaker Wire (+) Positive: White/Gray
Left Rear Door Speaker Wire (-) Negative: Blue/Gray
Right Rear Door Speaker Wire (+) Positive: White/Gray
Right Rear Door Speaker Wire (-) Negative: Blue/Gray
Center Channel Speaker Wire Positive / Negative: N/A
Subwoofer Speaker Wire Positive / Negative: N/A
Radio Size: Single or Double Din
Radio Removal: Using plastic bezel removal tools carefully pop the radio bezel from the dash. Take note of the airbag light at the bottom of the bezel. If you unplug that with the key turned on, or turn the key on after unplugging it – you will set an airbag light that will NOT go away without a trip to the dealer. Unplug all the connectors and remove the dash bezel. The radio is then held in with 4 screws.
Keep in mind if you are installing a new radio you need the wiring harness, the antenna adapter, steering wheel control module, and the mounting kit as well.
REQUIRED PARTS FOR AFTERMARKET RADIO INSTALL
BASE SYSTEM WIRING HARNESS – ECONOMY INSTALL:
This harness will work great to install an aftermarket radio, but you will need to run your own ignition turn on lead to the fusebox and connect using the fuse tap below.
This harness will provide a turn on lead as well as illumination, reverse, and vehicle speed outputs. Worth the extra money if you are installing a navigation radio or adding a backup camera.
MOUNTING KIT FOR DOUBLE DIN AFTERMARKET RADIOS:
(This kit can be used with double din radios only – has a nice matte finish to match the OEM look!)
MOUNTING KIT FOR SINGLE DIN AFTERMARKET RADIOS:
(This kit can be used with single or double din radios – has a nice matte finish to match the OEM look!)
Depending on radio these vehicles may have the single OR dual Fakra antenna. You will need 1 of the antenna adapters below unfortunately the only way to know for sure is to pull the radio and see what your antenna lead looks like:
SPEAKER ADAPTERS FOR INSTALL:
Use these to install aftermarket speakers for ideal positioning in the door. If doing front and rear doors you would need 2 pairs.
STEERING WHEEL CONTROLS ADAPTER:
RECOMMENDED TOOLS FOR THE INSTALL – SAME ONES THE PROS USE!