Quote Originally Posted by mike1994 View Post
why is it on ebay they sell this 200$ and from GM 30$?... i dont understand ''long as you have RPO C98 which is the Option for the GMLAN Network Bus'' are the wires gonna be the same collor what wire do i connect to what color

the wires you need to tap into are the Gray wire on Pin number 4, and the brown wire on Pin number 7. (the Pins in question are in an 8 way connector just above the Data Link Connector; remove the Knee Bolster to get to this connector easily.)