What I'm trying to do is keep a pair of my sl60's in my car and put the other pair in the VX . That part is simple ,what I cant seem to find are some 6.5" mid-range woofers for the rear of each vehicle. It seems that all 6.5" speakers come with tweeters, I don't want tweeters. So far it looks like I'm going to have to get a pair with tweeters that are not attached to the woofer and just leave the tweeters out. Cool , So the Boston SL60's sound great but lack heavily on the mid base IMO . I want to remedy this with a pair of good quality 6.5" speakers . 1 set for each car which will be installed in the rear factory speaker mounts . Good strong clear mid base is the goal , the subs take care of the rest. I'm looking for sound quality. Price, I'm willing to dish out another grand to complete my sound systems. It's all about SQ.