Yes, you need a cable that connects to the TV tuner to give RCA's for AV in, it's only mono sound though. There are usually some cables on e-bay (you may have to include Europe in your search).1. Using the oem sat nav dvd player to play films?
No, you need to use a LOC (Line Output Converter) like the Clean Sweep to convert speaker level output to Line level or use an amp that will take diferential speaker level inputs.2. Is there rca ports at the rear to connect a sub and amp to it?