Display Unit on 2005 Mercedes-Benz SLK350

Some of buttons on my display unit (GPS,SAT radio, etc.) stopped working. Dealer says $7500 to replace unit. Are there used ones out there somewhere?

Asked by for the 2005 Mercedes-Benz SLK350
Check salvage yards or online.
there are shops out there that specialize in fixing radios
and such. try a local shop listed under auto radio repair.
you already have a used unit; buying one from a junk yard
may have more problems that yours has.
Thank you