i got a bose system and thinking replacing the speakers. but need to know the size of my front side and the mid-rear panel speakers. i thinking puttin in a tweaker in the front door panel. and i heard that the rear speakers that their four wires. if so, what are they and can i just leave those alone.

p.s. i am replacing the head unit because the cd player don't work. but this is just for now.

 

Midsection dimensions I believe are 6-3/4". Idk, but I've heard that there are two speakers in the each of the front doors already, and one is suppose to be a tweater.

 

two speakers in front door! ****...oh well, do some custom set of both doors!

 

When I took off my door panel to fix my right front speaker, I only saw one speaker. Its kinda wierd though, the amp is connected to the speaker. If I have it right, theres 3 amps. One for each front speaker, one for both rear speakers, and one for the sub. So unless your really good with car audio (which I am not at all haha), dont try it yourself.