I am sorry I cant offer an easy repair for your unit, but I can give you a bit of good news!
There is a company in Colorado, Norbern Electronics that Specializes in the repair of Bose Wave radios, and they will fix just about any problems for a flat rate of $99.00.
If you would like to contact them, you can find them at http://www.myboserepair.com
Have a great day!~
I have my doubts that is a great radio in view of its failure after 10 years of use. I appreciate your honesty.