I worked for Tweeter for years, and was a Mobile Electronics Manager. The day I bought my 2003 Limited Explorer, I had my shop strip it down, Dynamat the whole damn thing, take out the 3rd row seat, install MB Quart Components up front and in the rear, run JL Audio Amps, a 13W7 in slot ported box, and Poineer's Indash with nav, backup camera. I've won SEVERAL sound quality competision's in it. The Mark Levinson is a nice OEM system. I think the LS460 Version sounds alot better, but aftermarket systmems can blow it away !!