I fit a modern receiver to my Europa, not so I could pick out the subtle intertwining of harp and voice with my favourite Mary O'Hara albums -- I think death metal would work though, or perhaps they have "shouted" books on tape? -- but so I could get a back-up camera. It's a Kenwood KIV-BT901 and it is discontinued now but it is a rare single DIN receiver with an LCD screen pre-wired for a back-up camera. What can I say? It works as advertised. Select reverse and it comes on giving you a fighting chance of parallel parking -- not too close to the curb, mind, or your passenger is hooped.
YMMV