dont worry 'bout spending money on rear-fill all it'll do is ruin your front stage anyway, and the whole point is the drivers seat, it's your car but if you do get something for the passengers comps are the way to go!but remember dont do it!
Yeah i got lucky with those ,they sound amazing, i've heard other top notch speakers and these are the winners to me. the phd's are more detailed though they are prob a bit better, but hey cant win them all. And don't let guys talk trash 'bout the jl amps they're real nice, i compared my jl with the arcs, the arcs are more detailed and cleaner but they could always be an upgrade. I've already decided on the audison amps, these are beasts!