Hi Cilent1,
You might check to see if the battery hot line for the radio is not intermitant. All else fails you can send it to me to check. If it has a problem we should be able to find it. If it doesn't have a problem we may be able to advise you as to where next to go. Let me know if I can help you in any way.

www.lajollaaudiorepair.com

Cleeve Morrison
La Jolla Audio Repair