My 1973 Camaro LT RS Z28, (had it 43 years) has had a problem with the AC /Heat fan "Switch". ( car is obviously a Late 1972- sewn headliner, switches, etc) so it uses a 1972 AC fan "Switch". Anyway, I've tried to replace it a few times over the years and I always end up with the same result. It works, BUT 1 wire ALWAYS gets hot and tries to burn off the end ! I've cut off the wire end and installed a new "End", no Go. new plug, Nope. the fan "motor" is new, no extra "Draw". WHAT could be causing this wire to overheat ? Is there any "other component" between the switch and fan motor that would do this ?? right now it just has a" toggle switch" inline for the middle speed fan power, but that only gives me On/Off, nothing in the middle, and I'd Really like to make it RIGHT. Thanks for your Help.