AC or Heat only after radio install
After radio install, at about 65degrees, AC switches to heat. Worked flawless before this; I know there are only 2 connections on the AC/Heater module (as I have done a dash replacement myself). In my last IS300 they by passed the cars amp as I had speakers replaced at the same time. On this IS the speakers are fine so they hooked the radio into the cars amp. Could this be caused some type of problem in the electrical system?
Installer willing to work with me, but not sure what the problem is...