Please help. I currently run a 58 reg highline with factory fit RNS510 Sat nav, which is brilliant. I'm looking at a new company car and have been offered a B7 SE. Can I swap the new stereo for the old Sat Nav? If so, will I lose any functionality eg route instructions in dashboard? Also, is it possible to "unlock" voice control on old system, as it's now a standard feature on new RNS510. Any thoughts/advice would be greatly appreciated.