I am using two sets of Audiobahn AS68Q's in all the doors. They have removable tweeters incase you ever wanted to do something fancy with them. If not they are a straight pop in. They also have built in crossovers to protect the tweets.
I think the model number on them has now changed since it is a new year, think it ends in "V" or something, just check the website. I got mine off of Ebay for around $100. I think they sound great and I am impressed. I am powering them with an external amp though, so, that might be something to consider since they do run 50rms per channel, but IMO I don't think it would make a big deal, should still sound clean. Bass response was pretty good but improved alot when I sound deadened the doors.
Hoped This Helped some.
