Well it seems my 05 300c has started to show age. The warranty ended April 2007, My CD player went into error mode and eventually stop functioning, holding all my CD captive. While contemplating next move the battery went dead and I had to spend 10 hrs recharging it, (thanks to my 1989 bat charger still functions).
All in all happy ending, ad came in from dealer (PassPort Chrysler of Alexandria, Va) with battery coupon, replace battery Part/Labor $69.00/$69.00 and Daimler Chrysler has Goodwill -out of Warranty, in which they will replace complete radio unit for $50

. I guess it was a good idea to be a return customer (bought 1968 Plymouth Road Runner new).
If you go there for service (yellow team) tell them ItsHemi sent you