I can also add kudos for Blaupunkt units. I use nothing but CDR's and ....in the nearly two years it has been in service... I have yet to have any troubles whatsoever.
On the other hand, I did not have troubles with the OEM units either, though...for whatever that might be worth.
In other vehicles, I have owned and had many troubles with Alpine, Concord, and Pioneer units. In each case, the respective companies were very aggravating to deal with over the matter.
By contrast, I have had but only one problem with any of my Blau's (I have been a loyal Blau man for a number of years now...equalling 4 installations).....that one problem was not their fault, it was mine....and they were absolutely WONDERFUL to deal with! In fact, they sent me the replacement parts free...didn't even ask for shipping.
It would take an awful lot to pull me away from Blau ...at least for the forseeable future.
....sT