Okay, I'm kinda an audio junky and was wondering a few things. Since the head unit will be impossible to replace, I was thinking about adding aftermarket amps and speakers. I looked on Crutchfields web-site and they indicate that all of our speakers are 6 3/4, with the exception of the tweeters. My question to you is is anyone has succesully installed an aftermarket component set in the front where the stock speaker locations are? I can figure out the rest, but I prodded around on the tweeter grill and couldn't seem to get it off all the way. I could pull it up just enough to see the tweeter, but that was it. Thanks!