I had a chance to get the Sony for $350 through my job so I picked it up. There was no built in amp on the unit so I had to buy an amp as well. The sound is a lot better than the Kenwood, and it has a sub-out that the Kenwood didn't have.
Old Kenwood MPV-619:
New Sony MEX-5DI:
New amps:
Sub:
I didn't have the 500x 4-channel until today and it helped with the sound a lot as well. They basically had to reinstall both amps because of the way the old one was positioned. He said it should have costed $340, but I got it for around $100 (Labor). They had my car for basically the entire day.
I'll take some better pics during the daytime tomorrow.
What you guys think?