I am going to be installing some 5 1/4" component speakers in the doors. (2000 btw) First off where is everyone putting the crossover and how are you securing it?

Second what size is the stock tweeters? I've seen 3/4" and 1" both floating around.

Third, if I hook up the stock wiring to the speaker but NOT to the HU will it cause any problems? Thinking if I remove the aftermarker HU and put the stocker back in I want the speakers to work(unhooking them from the amp of course) without taking the door panels back off and hooking them up.

Thanks,
Joe