Moon roof is a known nuisance item, mine rattles like a SOB when open (i.e. usable). As far as the rear, take a look at anything you may have stored in any of the numerous rear cubby holes. Im talking left/right cargo storage areas (where your jack tools are), small storage areas on top of the wheel wells and even the rear door pockets. I always heard a rattle back there when the music was quiet and finally started looking into these little cubby areas. Found all kinds of crap that was making noise but that I forgot I had back there (ammo, shackles, tow hitch pin, etc). So now at least I know thats its my inner hoarder and not some suspension or driveline noise.