the connectors in red are used by stock componets, the one circled in green was empty when i pulled the stereo out, what is this for, can i get some kind of wire to go from that to an mp3 player or sat radio reciever?

 

Is that the back of the stock Bose radio?

Might be a connection for a satellite radio input.

 

its the back of an 06' base, non stock bose stereo

 

do you have Nav? if not, that might be the connector that links the stereo and nav together

 

Thats where you connect the Flux Capacitor.