Hi all. Info required with this one.. I have the standard radio fitted to my car, but want to upgrade to a another version where I would have the tom tom maps available also. Can this be done by removing the unit from another car, and will it work in my vehicle or do I need to configure software for this. Also will it just plug in to my existing wiring or do I need to get harness from donor car as well. If I'm not mistaken unit will come from a RS265. Many thanks and hope for some positive feedback on this one