checked the connections to the box in the trunk and all is connected. As I remember he did some magic from the front of the radio....

I have found out how to turn off/on the radio display, and get into diag mode. Diag mode only lets you see if any of the front panel LEDS are out. Both are nice to know but useless to me and most other people.

The search continues.....I am so ticked off that I ever did this