So had my 08 Avenger for one yer and the MP3 player has worked great until today, I switched from radio to hard drive and nothing..no pics no music nothing..i looked at the "space used" screen in the setup panel and it shows that i have 0 gig of 0 gig used..wtf?

My first guess would be hard drive failure but if the hard drive failed wouldn't the unit be completely useless? ie it still has my radio stations saved still has the default dodge picture etc

also if it is HDD failure what are the specifications for a replacement? or do i need to get one through dodge in order for it to work?