Sup, I am new to this message board but I need some help, I just bought a 1998 cadillac deville, base. When I went to purchase all the parts I needed to put the cd player in the guy said I need to run the factory deck harness into the trunk and hook it up there because the factory radio is integrated into the security system. But i examined the trunk and found that there is already an exsisting harness there, now my question is does anyone else have a harness under the carpet in the trunk on the drivers side? If not i think i'll have to do the extension and put it in the trunk. Thanks.