I'm looking at double-DIN units and reading all the reviews I can find. One complaint that pops up is that the DVD-based units are slow to update, especially if you trick it by not following its latest turn recommendation.

My wife and I share a suction cup Garmin that calculates the new route within a couple seconds. I'd hate to spend a kilobuck or more on a jazzy in-dash only to find out it's less capable than the $350 Garmin.

Any advise out there?

Jeff

 

Well, I have a 2003 BMW M5 with a DVD based nav -a dedicated nav unit- and it CRUSHES the 2004 PCM2.0 system.

I am looking to buy a replacement for the nav in my TT- likely an alpine NVEN872A (or whatever) which is nav based.

I am a bit of a GPS nut, and the single most important factor for me- by far- is the MAP DATA! I really don't care how fast, or if there is birds eye/3D view or anything else- I want to know the road is where it should be, the store or restaurant is correct, the data is updated yearly. I swear by Navtech maps.

I see few people making decisions based on maps, which surprises me...

A