RNS315 to 510 Upgrade

[Lyons]

Folks, I'm looking to upgrade from an RNS315 to a 510 in a 2013 CC. The 315 has DAB and Bluetooth, but can anyone confirm whether the Bluetooth is built in to the unit in 2013 and therefore I'd have to fit a Bluetooth module along with the 510?

[UMEL]

I have the December 2012 brochure which covers 2013 cars. It lists the RNS 315 as having Bluetooth telephone connection. The head unit shown has a Phone button.

Differences between the Volkswagen RCD 210, RCD 310, RNS 310, RNS 315, RCD 510, RNS 510, RCD 550, RNS 810 and the RNS 850 | my-gti.com