off a copy of each year's different model wiring diagram for that section and do highlight traces of each and see what the exact differences are and then re-wire accordingly, or buy from ttz'in if I found an exact match. But hey that's just me: way anal and meticulous and willing to spend as much time as it takes and do whatever it takes to get it fixed up :) And I HATE electricals! And wiring diagrams probably as much! Time consuming PITA!