Thanks for answering me!
Funny thing is I was punching around the buttons this morning & I got it working! Specifically the driver sound, passenger sound, etc. buttons & it worked BUT I tried it later & no joy! I'm going to "assume" its the unit for I wouldn't have a clue how to test the wiring or want to pay someone to.
I really like the sound of the system. Its the best I've ever heard but then you could honestly say I've only got $20 ears! LOL!
I suppose I could look for another 500 off CL or Ebay but that might be a gamble!