How To Scion FRS Stereo Wiring Diagram

How To Scion FRS Stereo Wiring Diagram


Upgrading your Scion FRS stereo is a common modification for many owners. Despite the fact that Toyota has discontinued the Scion subbrand, it hasn’t changed how popular the FR-S is. Whether you are installing an aftermarket Scion FRS stereo, or speakers for your Scion, this Scion FRS stereo wiring guide can help.

This Scion FRS stereo wiring diagram is complete with the colors and wires for all of your audio components. You can use this stereo wiring schematic for any radio install, even for the stock FRS radio. Upgrading your Scion FRS speakers is easy to do by referencing our Scion FRS stereo wiring guide.

This Scion FRS stereo guide is for the model years of 2012-2015 Scion. Also known as the Toyota 86, the rear wheel drive coupe is an awesome looking vehicle. You can take your FRS stereo to the next level by installing an aftermarket FRS amplifier or stereo.

Scion FRS Stereo Wiring Diagram

FR-S Radio Battery Constant 12V+ Wire: Orange
FR-S Radio Accessory Switched 12V+ Wire: Black/Blue
FR-S Radio Ground Wire: Chassis
FR-S Radio Amp Trigger Wire: Brown

Scion FRS Stereo Wiring 1The Scion FRS tweeters are located up front, and are 1″ units. These FRS speakers measure an inch deep, and can be upgraded easily.

When installing an aftermarket FRS stereo, you can use a double DIN setup. Although most stereo installs will not require the use of a mounting kit, one can be used to make things easier.

Left Front Speaker Positive Wire (+): Black
Left Front Speaker Negative Wire (-): Yellow
Right Front Speaker Positive Wire (+): White/Blue
Right Front Speaker Negative Wire (-): Black/Blue

The Scion FRS speakers up front measure 4″ in diameter. You can also upgrade these but for anything larger than the factory speaker, you will need modification to the mounting brackets.

Left Rear Speaker Positive Wire (+): Violet
Left Rear Speaker Negative Wire (-): Pink
Right Rear Speaker Positive Wire (+): Yellow
Right Rear Speaker Negative Wire (-): Black

When you are wiring in upgraded FRS speakers, this Scion FRS stereo wiring guide can help both stereo install professionals and weekend warriors. The Scion FRS or Toyota 86 comes with an 8″ subwoofer, and depending on the trim of your Scion you may have two.

Have any questions about our Scion FRS Stereo Wiring Guide? Leave us a comment below and let us know.