Good luck with your A4, I have mine just over a week and as you can imagine my brain is fried by now but I am getting there.
Its not fair in my opinion for users of the A4 module having to read between the lines to figure out the settings and as I said earlier its a different piece of kit in many respects and therefore should have its own manual supplied. And I'm also of the opinion that not all the bugs have been sorted out even though I have 41B installed but I will know more probably in about another week of investigating all the possibilities .
But so far I have to say I am impressed but I'm hanging on to my X4 for another few weeks just to be sure