I have purchased in installed 2010 Dodge Challenger Power/Heated mirrors to both doors on my 1972 Cuda. Both mirrors are a 6 plug with 5 pins. I can't located the wiring harness and switch for these mirrors. Dealership said that they were not available and I tried the local salvage yards. No luck there since they will not remove the harness from a good door. Can anyone tell me where to purchase the harness and switch for these mirrors.