Bluetooth audio connection to RCD 300

[marty___mcfly]

Just wondering if anyone has used one of these?

http://USB SD AUX MP3 Adapter and Bluetooth Hands-Free System for VW R100 / RCD-300 / RNS-300/310 / RNS MFD2 CD/DVD / Skoda Audience / Beat / Cruise / Dance / Melody / Stream / Nexus / RCD300 / Seat: Radio CD-1/2/3 / PN-1/3 / RNS-4 / RCD300 / SE250/350 (not Technisat) / SE359/360

I have a MkV with a RCD 300 stereo. This looks like a quick and tidy fix as the box could just be put in the glovebox to connect via bluetooth for iphone music and calls.