i believe the 92-95 civics had a double filament bulb...so when one is out the other still functions. you just need to pop the old bulb out and replace it. be sure not to touch it with ur bare hands because the oils on ur hands can actually heat up and pop them out again... if u look directly behind the headlight, u can see where the wires run, there should be a rubber cover over over them,pry it off gently, and ull see the clips holding the bulb together....

i dont understand ur a/c question... it should all bolt up if it came from that car

repalcements for the bolts,screws,and trim...you can find those at the junk yard...if not look harder online because as far as i know... the junkyard, online classifieds, and the dealer are the only people u can get them.