I bought the wrong dash wire harness. Most everything fits except the hvac vontrols the donor truck must have had duel climate controls mine does not. I know the duel climate won't work correctly but if I buy one do you think the heater might still work? Hopefully someone might have an idea. Thanks for any help.

 

What year of truck did the harness come out of. What trim level was it. What trim level is your truck. does your truck have back up sensor and or back up cam factory. What was the reason for changing the harness.
You have opened a pandoras box. Every last single option on the truck adds or subtracts items from the dash harness on these and there is not much interchangeability for the average driveway DIY.
Answer these please I can look up few things and I might have a work around.