I've given up for the moment :
One dealer said there was no upgrade for my car ( Nov 2010), another quoted Labour - £1400 Inc + Parts - £831.01 Inc.
This was on another thread
http://www.douglasparkhamiltonbmw.co....html?id=12712
£1269 inclusive.
You can also get the kit from
Patryk@bimmer-tech.net but the price has gone up due to BMW increasing prices.. There is someone in the UK who can fit it aswell.