I installed the DDX-8019 myself, a huge job, with a lot of help from the info in these forums. I have it running through the Bose amp and speakers, sounds pretty good. I even accomplished what is reportedly impossible, playing the stock nav voice through the sound system. I'm surprised that with the level of thought that went into a lot of these posts it hasn't been done before. I do have a couple questions though:
1) How do you get album Art to show when playing off USB? Is there a specific file format, size or name that must be used? I can't find anything on this in the manual or the Kenwood site.
2) I don't receive any radio signal. Is there something special I have to do with the Antenna or it's amp?

 

1) Are you using a program such as iTunes that marries the photos up with the songs? If not, you won't see album art. I'm not sure if even that works, but without it, you definitely won't see images.

2) Did you hook up the power antenna wire? I have the 8120 and I know myself and others were confused by that wire, but our Zs have an antenna booster that needs power.

Hope this helps.

 

Yes, I found out about this when I was installing mine. I believe it's the blue wire that needs to be spliced.