Had an Arc Audio 10" woofer with a 350 watt amp that was calling his name.
Amp tucked away nicely behind the rear passenger seat and made the sub box with millimeters to spare. This sub is fairly deep, and normally you'd only mount a shallow mount in these trucks...but I didn't want to go that route....so I made it fit.
System sounds good, nice and tight bass. Truck came with an auxiliary switch panel, and we tied the amp turn-on to the 4th switch; so the owner can turn the sub on/off whenever he needs to.