Yea, that makes sense. I called my buddy who has a GM dealership and he sent me the wiring schematic for the TAC setup and I see now exactly what you're talking about...all except the lt blue wire being T'd into...hmmm....

So, what i need to do is replace the inputs to the TAC module with the outputs of the 93 cruise switch and that should fix me up. I'm going to have to find a normally open relay though and hook the brake signal up through that since my brake switch gives a constant 12V signal UNTIL I hit the brakes. Just gotta flip flop it.

Well, I'll give this a go now...

Thanks again for the help!

Cody B.