Just need time alignment. However, most tend to not go much past 4-5 feet in range of adjustment. No manufacturer expects a car like yours.//content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif
However, you do gain an interesting side-effect. Because of the (lack of) proximity of the speakers and sitting locations, you can effectively create isolated listening experiences for both the front seat and rear seat passangers without too much multi-speaker interaction. Unlike most cars, you could probably get away with multiple, seperate sound stages.
As far as the subs, you might consider ditching the traditional sub and simply rely on a strong midbass woofer and a little cabin gain to give you good low frequency extention. The downside is you're probably stuck with a 3-way setup or a midbass(think 7"-8", something near a minisub) + small full range (2"-3") setup.
What's the seating layout?
What's your total budget? You got $2k to work with?//content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif
I would sort of suggest a high end HU with built in crossovers, lots of amp channels, and 2 or 3 duplicate active setups progressing down the length of the truck, depending on the seating setup, but you sound like you're on a shoestring budget here. You have lots of options, but I don't know if the cheap ones are worth the effort and potential suffering you may have to endure afterwards.//content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif
