MP3/RDS Headunit

I am looking at buying a 2000 or 2001 Grand AM, and would like to know if it is possible to change the CD headunit (Factory), with an MP3 Headunit (Factory), like the ones in the new Grand AMs? And where would i manage to find one?

Thanks

Bryan M

If you want a new one, goto gm obviously. But, if you want a used one, you could try looking on eBay or possibly any local junkyards.