I bought an aftermarket cruise control for my '01 5.2l B2500. I have the servo mounted and the vacuum line placed. Wiring is giving me a fit though. I need to tap the vehicle speed sensor wire and tie into the brake light circuit for the cruise turn-off.

ANybody have an idea on the vss wire tap location?

AND

which of the 5 (or 7) wires near the brake pedal I need to tie into?

I have already blown a fuse trying to probe these wires because of their location.

any and all help appreciated and thanks in advance