Wiring Diagram How To Connect Steering Wheel Controls To Aftermarket Radio Without Adapter. They short these pins with various levels of resistance which is decoded into the various functions. Locate the volume up button on the steering wheel.

Do not touch the steering wheel controls, the interface will auto program. Shop here:www.shoptfb.comhey guys, we get a lot of questions on how to steering wheel control modules aka swc. Steering wheel control wire for resistive type systems (see applications) pink wire: