im thinking its the rear crash sensor for the airbag, this is from a harness that i got off of ebay, listing said it was out of an 89, but if this is what i think it is then theres no friggin way. im betting this is actually a '90 harness considering that the fuel pump relay is under the seat. if it is what i think it is, is there anyway to make this harness work, or am i fubar?