Hunt down an old FM convertor and put it in the glove box.Hook it up to your factory AM radio.
Yard sales,flea markets,etc.
Both of my C's have them.

Some are on E bay,too
http://cgi.ebay.com/ebaymotors/AUDIOVOX-...sQ5fAccessories

'68 Newport Custom Barge on a Budget!! BOAB
1973 Satellite WAGON! 318- 3 on the tree!!
2008 Chrysler 300c HEMI!