Thanks for the reply Farmtruc. I just got back from the Junk yard to look at some trucks for an education. I have 2 thick purple wires coming from the starter relay in the under hood fuse panel on the driver side inner fender well. It appears 1996 truck were the only ones to have this at the junk yard. I check 2 1997's, a 98', and a 99 tahoe. From looking at a schematic from the Internet it appears one should go to the starte ras you suggested and the other to the Neutral safety switch. The problem I am seeing is the 2004 neutral safety switch wires are about a 16 gauge and the 1996 purple wire is like a 10 or 12 gauge wire. First i do not know if I am 100% correct but that's what it appears and Seconf I am wondering if this purple wire is going to carry to much current to the smaller wire on the 2004 neutral safety switch.

Hasn't anybody done this yet? I want to use the factory 1996 column shifter with the 2004 neutral safety switch. Isn't this possible?