I had Best Buy install one of these into my '04 Malibu, with Infinity Reference series full-range speakers all around. I had the USB cable ran to my glove box, and it all looks and sounds great! This unit has so many features (like a high pass filter for the onboard amp) that the instruction manual is on a CD! There are about ten different adjustments you can make to the bass from the driver's seat, so it can easily be tuned to many tastes. The only thing that I don't like about it is that searching for a particular song in a loaded iPod can be a pain, but it lets you search by artist, album, song, playlist, and even genre. All around, a great unit; it was clearly made for somebody to build an entire system around instead of just a replacement for the factory head unit.
I love this deck. it was a simple install, and simple to figure out. I had the i-pod cable ran to the center arm rest in my '03 grand cherokee and have it powering kicker 6.5" speakers any the sound clarity is amazing between the two.
jsut got one for my S10 , replaced a Clarion slide out touch . i'm very impressed w/this unit . easy to use and great adjustability for all things. I'm running MB Quart's and a RE Audio sub w/Pyle amps and it play's sweeeeeeeeeeeeeeeeeeeet !... I'm glad i switched !