RNS 315 change to RNS 510 retrofit?

[neilsafc]

Good morning folks hope someone may be able to help. New to the forum.

I have just order my new works lease car. Its a B7 Passat S 2.0 diesel in mocca anthracite. Only extras we are allowed to put on is sat nav and bluetooth. I asked for the RNS 510 but work would only let me have the RNS 315 option.

I would like to retro-fit the RNS 510 when the car is delivered in 4-5 months!!

I have seen that it can be done but is it a case of plug and play or will it be a bit trickier than that? With the bluetooth unit being specced with the car will it be the same bluetooth unit I need for the 510 or will it be another unit I have to buy. I have seen the RNS510 on ebay at not terrible prices but not sure what I need to do to get it to work.

Hopefully that makes sense