Hi Chris, sorry to resurect such an old post but I'm trying to retrofit DAB myself, I've got the unit, the amp and the wiring from kufatec but there is nothing wired to my rear right window, the aerial is there because I have an avant but nothing is soldered to the pads. How far did you get in the end? I particularly want to know which pad corresponds to which pin on the signal amp.
cheers,
H