I purchased a 2008 Jayco motorhome in April. The Magnadyne M9900CDS stereo receiver/CD player worked initially, but I had some work done on the RV that required disconnection from the battery. When I picked it up from the company that did the work the radio would no longer find specific stations in "search" or "scan" mode and it lost the ability to do manual tuning to locate specific stations. I would appreciate any insight others might have. Thank you.