Summary: FINALLY GOT IT INSTALLED (BEEN TO COLD TO INSTALL OUT DOORS), BUT IT WOULD CONNECT THEN LOOSE NAVIGATION. TRIED TO INSTALL UPDATED SOFTWARE USING A 8G SD CARD, THAT DIDN'T WORK SO I USED A 256M SD CARD AND IT WORKED THE FIRST TIME. SEEMS TO WORKING FINE NOW, NOW I NEED TO TRY UPDATING THE MAPS.
Summary: I installed this in my 2005 BMW M3. It works as advertised but the maps were somewhat outdated. Replacement maps from Garmin was almost $90, which I wasn't expecting. Aside from that, fantastic product.
Summary: I have an older Kenwood DDX6000 series DVD in dash receiver and it connected perfectly and worked just fine the GPS receiver (antenna) cord was just long enough to install. I recommend the back window for the best point-of-view to get a GPS signal.
Summary: I've owned this for a few years already, there may be a newer model out, but beware of this device. It doesn't have the basic function of displaying speed limits. Map updates are very, very expensive.
Summary: LIKE MOST CONSUMERS WITH INTERNET ACCESS I DID HOURS OF RESEARCH ON THE KNA 510 AND ALMOST DID NOT BUY EVEN THO MOST REVIEWS WHERE EXCELLANT REASON BEING CRUTCHFIELD SAID THE GPS MODULE WOULD NOT WORK FOR MY RADIO BUT THE KENWOOD SITE SAID IT DID,,,,BOY WAS I HAPPY AND PURCHASED IT ON EBAY FOR A...
Summary: I bought this to replace my 2008 Subaru Legacy OEM NAV (Kenwood based audio/NAV). Works with OEM touch panel. Instructions on Internet (not exacly plug-in replacement but pretty easy if you are willing to remove seat, dashboard trim and cut some wires) Garmin Maps beat the OEM maps 100 to 1.
Summary: By the time I was looking into adding a navigation system to my Kenwood DDX8017, the old DVD based Nav systems were obsolete, costly, and kind of big. I was told by a friend in the industry to look into the new flash based nav powered by Garmin.