HOW I CAN FIX MY RADIO IN 2012 SUBARU LEGACY ?
First check fuse(s), then remove radio to see if rear plug is SECURELY fastened, as once in awhile they're not fully inserted and jiggle loose after awhile. If no-go buy a used head unit on eBay/salvage yard and swap out.
Search Subaru Legacy Questions
Are you a UK consumer? CarGurus now has a discussion forum in the UK.
Subaru Legacy Experts