Success thus far. Kept factory radio/CD player and swapped the separate cassette (in image below above little storage compartment) with a secondary CD, DVD, GPS, backup camera and MP3 unit via a GM auxiliary input converter. Now, when you click the "AUX" button on the factory radio where it used to then control the cassette player, it flips to this unit. I wanted to keep the factory look and then just have this second unit below Before: Headrest monitors: Monitors powered: Need to increase the opening where the cassette player used to live, but this is what is taking its place. Also adding a little 8" sub and amp mounted under the middle row of seats. Yeah, this was all for the kids