RTI sat.navigation expert advice

Hello I have found a RTI sat.navigation from an 2003 S80 on Breakeryard (in Germany). There are 2 Cdchanger boxes, one for 10CD and one for 6CD. Why ? According to the seller all wirings should be present (but how to check)? Is it possible to fit this system to a 2001 V70-2. I have the HU-803 radio. Is it possible to fit the later larger screen to the older system. It it possible to change the language. ("it`s German" ) I will appreciate any reply regarding this matter. Thank you for reading so far. Kind Regards Michael Jensen

I was always told that you could not swap items (RTI/phone etc) but the tech guys at Volvo Tech near Rotterdam suggested otherwise. The language should not be a problem as they can be set for most European languages. Wiring (all RTI systems Ive seen have RTI DVD in the boot) is a bit of a long job, and might also need a few extra power supplies. If I was doing the job, Id want both cars together so see what else I needed.. but thats not possible if your in Denmark (assuming you are)

Its most unlikely the whole system would work as it is from another coded car BUT if it did then there could be a serious software mismatch next time you had software downloaded for a new module , upgrade etc .. The 10 cd changer is for the AUDIO CD player .