95' eagle vision no a/c no htr or defrost

I just bought a used 1995 eagle vision, But my a/c, heater, and defrost don't work at all. none of these turn on at all except my radio. I've tried changing the fuses but still nothing. I would really appreciate any advice anyone would have on this problem. I have tried calling the dealship to ask if maybe it could be a relay or something but they said there's no such relay for that and want to charge me an arm and a leg to have it checked out. thanks again in advance.

i too have similar problems, the leds come on with the various buttons I push but no effect the rear defrost works, and some heat blows out but nothng with the addition of my gauges dont work they all register at zero, gas, speedometer etc...
its getting winter time. PS I did replace the coolant temp sensor...no luck.
help....