Help Needed

Guys the other day came to my 54 plate td to find it had a flat battery only been standing 2 days ! Anyway out come the AA and get me going again only to find the radio does not work ! I have checked all the fuses etc and now looking in the rear left compartment does anyone know which box is the radio one ? And anyone had this before ? Any helpful suggestions would be appreciated fed up of whistling while driving !

Is it totally dead or does it just need the code re-entering?

Totally dead no light comes on the display panel everything else works ok apparently my wife said it came on for 30 seconds the other day so I'm presuming it's a loose wire ? Never happened before