Summary: Very easy to use, updating the maps is a needed at this point but is very easy to do also. The operating system updates the same was also, a small sd card is needed to do any of these. Connection to the head unit was direct and simple.
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: Kna g510 work excellent. I have a kenwood DDX7015 receiver that was installed in my ford f150. They work great together. Waited a long time to put these units together. The GPS display are beyond words . Clear & precise. Only one question, what the different between 2D & 3D viewing on the GPS unit?
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 It works as advertised but the maps were somewhat outdated.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. The ability to update maps is simple and to create custom POIs is a little bit of a headache but in all works great. I use it practically everyday.
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. System software is rarely ever updated, last practical update was for sd card capacity, almost 2 years ago. It is basically still the same lame navigation device it always was. It is better than nothing sometimes, but usually better without it at all.