So I can't say for sure since I have a 1998 manual, and apparently these were ONLY in select 1997 GTPs. This interestingly is where the myth started that the bose amplifier doesn't actually amplify the front speakers. This: http://www.grandprixforums.net/threa...bout-stock-amp little baby amp is what should be there. I've seen a few in the junkyard, but never peaked my curiosity. Apparently, no one has the pinout for these connectors at all! I'm going to try to locate one of these in the junkyard and use a test light to at least find the color configuration for the front door speakers. I'll let you know.
