I just bought the SR100, and I have the same problem if I have my hand covering the remote. Also, long keypresses won't work, cannot understand why as it behaves differently from the original Kenwood from my MKI.

Oh well, will just have to live with it. A pity that the Blaupunkt one won't work, wondering if it is time to buy one, and try to replace the IR stage on one of those.?? Any thoughts about that anyone???