I have a 2002 Z06 that I attempted to install an Autoblip in. Problem is their wiring diagram doesnt cover all 100% of GMs diagrams, as some cars underdash wiring is slightly different. Is this a splice and see which wire works (which I really dont wanna do) or has someone had this same experience and has it figured out? Namely, the APP, brake and clutch wires under the dash. THX Brian!