AUX for Bolero

Hi,

I just want to pick your brains and see if you could help me. I have installed a Bolero in my Yeti S, it doesn't have AUX installed, and I notice that the CAN BUS connector is blanked for the AUX in and the Telephone bits (3 and 4 in this daigram: http://www.my-gti.com/wp-content/uploads/volkswagen_rcd_510_main_N91-10016.gif)

I am wondering something like this: http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=150528710618&ssPageName=ADME:X:RTQ:GB:1123 would eneable me to use AUX?

Thanks!