GReddy Turbo Timer Question

[blackhawk1402]

When installing the GReddy turbo timer, which wire do you splice into the parking brake? I bought the harness and i know that goes behind the steering column but there is a separate brown and purple wire that has to get spliced into something. So do I splice the purple or brown wire into the parking brake? And after I do that, where does the other wire get spliced into? Thanks guys.

 

[rich3389]

brown-parking brake
purple-speed sensor