€ 1,184
for a cheap looking peace of crap like that. No way. Also it doesn't have a MOST bus, which wouldd be important for poeple with a CDR23 equivalent unit.
I would go with a used Becker unit, like that
http://www.mybecker.com/deDE/hauptnavigation/automotive-archiv/cascade-pro-7941/ueberblick/
http://www.mybecker.com/deDE/hauptnavigation/automotive-archiv/cascade-7944/ueberblick/
Or if th car is old enough with something like that:
http://www.mybecker.com/metanavigation/home