ok so right now im putting a obd 2 gsr into a obd 1 integra that had a LS. now i have the complete wiring harnesses but on the LS it only has 3 plugs coming from the car and the GSR has 4. is there a conversion i can buy to make it work or do i basically have to strip out the wiring completely and put it in there? let me know asap!!!!