What other parts are needed to install an air condioning system on a 93GS that didn't have one to begin with?
I know there will be a wiring loom to the switch in the interior but what else? Duct work I guess too or is it already there but not used if you didn't order the air with the car?
My Dad says no way - not worth it, as a used compressor may need new seals. He says to sell the evaporator and I say the black interior to my car makes it unlivable in the summers!!
He thinks a different pulley and bracket is needed too. I think he doesn't want to do the work!

Is this a bad idea to retrofit air?