Polo 6R retrofit bluetooth module

Hi,

I have just purchased a 7P6 035 730 module only and looking to retrofit to my UK 2010 POLO 6R SEL. The car has a multifunction steering wheel and an RCD510 head unit. I believe the module I have purchased is the 9w7, am I correct?

Can anybody point me in the right direction of which oem harness to purchase? I see theres a few different options and 2 different connectors (iso & quadlock). My mate is going to install the hardware and I know the car Would need coding by a specialist to get everything working, i just need to be sure I purchase the correct harness for the car so the voice activation can work etc. Amy help much appreciated.