JVC Arsenal KW-ADV793
I used this unit to replace the stock of my van.  The only difficult thing in the install is the removal of the stock unit.  The install is a sinch as the manual shows everything.  I hooked up the signal cables, the speakers and all othe power requirements and it worked when powered on.  I just wish it came with a remote.  The feature that the buttons light up when one's hand is near seems like magic to my kids.