[Clan]

The exchange ones come blank so they accept the software for your particular car .
Interesting how some radios seem to work properly in a different car , the few i have tried certainly didn't ie , no display and no steering wheel controls .. Beware if you have a software download for any thing else on the car and the volvo computer in sweden finds a module with unrecognised software ie non-matching , the car could loose all the electrics and need an expensive visit to the dealer ... the main volvo computer in sweden knows which serial numbers each module is supposed to have on every single volvo made from 1999 ...