So my 2009 GT shaker 500 is giving me the dreaded cd error - battery was dead while in storage - and upon putting in a new battery the cd player is going nuts - not fixable from what I've read - and ford in Canada probably wants big $ for a new shaker 500. Sad as I wanted to keep the car mainly stock - but the cd player sounds like a machine gun now - and with the possibility of a newly installed shaker doing this down the road - I think an aftermarket unit would be best. I've...

Suggestions to replace Shaker 500 stereo in 2009 mustang please