
Originally Posted by
oj88
Yes, the DDX4031BT supports an external GPS module. It's the Kenwood KNA-G630.
I have the older DDX8034BT with a KNA-G431 nav module.
The good thing about Kenwood nav units is that, they use Garmin as their OEM for these modules. Can't ever go wrong with Garmin. Updated maps are also freely available from Roadguide.ph (catch is, you need to be a contributing member first).
I'd personally stay away from those 'OEM-looking' China units. Maybe I'm just picky but suffice to say that those things only looks good in pictures. They sound horrible. In fact, they remind me of early AM/FM transistor radios of the 70's-80's.