I'm thinking of replacing my crappy headunit:o
I've narrowed it to Alpine 7897 and 9815,what are the pros and cons of mentioned headunits,your help is appreciated

 

Personally, I don't see why the 7897 is more than the 9815...maybe because of the motorized face? They both have the same features (important ones). What are you looking for in a HU? For that much money, you can get a HU with a lot more features (if you want to tweak your system to the max).