Wiring Help: Aftermarket GPS navigation install

Discussion in '2007 - 2014 Shelby GT500 Tech' started by geekoid, Aug 16, 2008.

  1. I have a wiring harness and mounting kit from Crutchfield to replace the shaker500 with the new double din deck I am installing. I have all the wiring prepared with the exception of three wires.
    1. Speed Control
    2. Reverse Sense
    3. Parking Brake
    The reverse sense and parking brake are easy but I don't want to have to run a wire all the way to the trunk and tap the reverse light. Some of these wires must be coming from under the dash already. It is a pain to route a wire all the way back there. The speed control is a complete mystery because I can't find a wiring diagram for a 2008 GT-500 I assume I could get by with a GT wiring diagram, neither are readily available online.

    A little help please..... :canada: