Thanks for all the info.

Can anyone confirm that this heater switch IS what is causing the magnetic compressor clutch to engaged when heat/defrost, and off buttons are depressed, but not when all buttons are pulled out?

Rock auto actually odes not have it to order though. you don't see this till you click to buy... that means off to the parts store. with the parts stores around here I am lucky if they can track a part #, never mind actually tell me if the part may be the source of my problem.