If you have any count for a substage, it's going to rattle. Point blank.
The Jeeps are a decent product. In fact, someone just did a build with four 15" AudioQue HDC3's in one, take a look for that one - pretty nice looking.
My buddys 08 GMC Envoy's hatch barely rattled.....more or less just vibrated and wasn't annoying at all. With all windows up you could barely tell he had a system in it. No sound deadening at all and he was doing high 140's with it to boot. It was shocking to me to, till I seen it with my own eyes. I always wanted to video it, but he was always a bish about it.
im selling a red blazer. forget what year. has a new engine in it. i think my dad wants to let it go for 3.5k. ill give u more info if youre interested =]