Having limited space on a Defender windscreen & wanting a dash cam as well I did a lot of online research & purchased a Garmin nuviCam LMT which had good reviews, and combines both functions of GPS for Australia/New Zealand with lifetime updates, & a dash cam.
Does have some annoying features like collision avoidance which sounds an alarm, a different alarm for lane departure - even when you are not near the white line, & yet more alarms for fixed traffic light cameras & mobile speed cameras. I'm getting used to all the beeps, whoop whoop's, pull up, pull over, don't pull over, but it seems to work OK, & I guess if I read the online manual I could probably turn some of these feature off.
It is rather a large unit but I find mounted low down central I can still see the left hand corner & front of the bonnet, so it hasn't impacted the view. I haven't worked out which if any off road mapping software I can download, but will probably use the wife's IPAD mini for that eventually. Must add that for remote travel in the old Series 1 I have always used paper maps, they seem to work a treat.
One drawback it was just over $500 but for both functions I think that is OK, and it did include a small SD card for the camera.
