Hi group, I'm thinking of using my tax return to upgrade the stereo system in my 2002 4Runner SR5 Sport. I want to get a new Alpine head unit & some better speakers. I don't think that I'll go with an amplifier, as I'll go for a head unit that will put out decent power. I know that the front door speakers are 6 3/4", those are easy enough to find. My question is what size are the rear door speakers? Are they an easy to find standard size as well? Also, I was thinking of just buying 6 3/4" 2-way speakers. Would it be worth the extra work to replace the factory tweeters as well, and go with component speakers all around? Or would I have to buy an amp to take advantage of that?
Anyone have any experiences doing this? I've put head units in & replaced speakers before, but never in the 4Runner. I bought it brand new and like how clean everything looks, so I'm thinking of going with getting installation through the place I buy the stuff from. Is there anything especially difficult about the 4Runner that might make me NOT want to do it myself? Or that would cause them to charge me extra??
I guess I'm just asking general advice for the best route to go to upgrade the stereo all around :) I don't want/need any thumping subs, but the sound in the 4Runner is not up to my usual standards for audio. Especially in the summer time with the windows down & Moonroof open, its sometimes inaudible.