I'm trying to see the wires behind the center dashboard panel. I'm looking for the wiring harness plug for the "mirror defrost switch". Not sure if it will be back there or not. So far I did find an extra wiring harness plug behind the spare change holder (I was able to pry it out). This is where the trailer brake controls go (I don't have the factory trailer brake controller). So maybe the defrost wires will be there also.