I was wondering if anybody can put in their 2 cents about getting stock nav or going with an aftermarket navi system. The only reason I would go for a stock nav system is cause it'll just be thrown into what i pay every month vs getting a pioneer in dash dvd/nav system for about 1800 bucks. Also, I'm going to be adding an in dash dvd to it anyways, so would it look stupid to have the fac nav screen AND a flip out dvd? Thanks in advance.