I'm getting a new Sony head unit installed in my car on Tuesday by Halfords as I would like both Bluetooth and Dab. Sadly, they don't have any of the Connect 2 CTSBM009 (Steering Wheel Adapters in stock) and will not for a very long time by the sounds of it. My question is, if I go ahead with the install on Tuesday, if I was to buy this adapter separately to get installed outside of Halfords, would it be a difficult job?