Dude . . . I was replying to jer's comment.
sorry i seen the comment in a post that i was quoted in
My wifes's VW Jetta's nav system added $1700 to the "retail" cost, was then discounted approx 10%, and blows the Kenwood out of the water in every way I can think of save for the built-in Sirius hardware
as said above, the OEM manufactures spend A LOT more money and time in R&D, therefore should be much better, they also dont have to make the units universal as they know exactly what car they will be installed into, expecially when every system in the car can be ran through one single user interface like the new Audi's (and VW's) but you can also get a more basic 6160 that cost much less than your factory $1530 price tag with the exact same nav (around $750ish on amazon)
i didn't say they where the best(because there not even close) they just have one of the easiest to use nav systems available
Sorry, Kenwood is SUPER OVER PRICED considering they have COMMERCIALS and DON'T supply their own nav system.
and that is the best part of a free market system, a company can charge as much as they want because we have the choice to buy something else, but that doesn't change the fact that kenwood is selling a lot of them
Check out a new VW. And I read lots of forums of people with Kenwoods that reset, restart, freeze-up .... seriously, those "cheap" Chinese companies are a lot closer to being serious competition than I imagine even THEY think they are.

trust me, I'm on those forums too, and kennys have a lot less problem than pioneers do (well at least everything after the D3's)
but if you want a quality system then alpine and eclipse are two of the better choices, the interfaces on the eclipse look like they are straigt out of 1995, but they have very few problems and sound amazing, the alpines are getting much better looking GUI's but its starting to slow them down, but again pure sound quality is hard to beat.