Great article Jacob,
I would however had liked to know a couple other things (if the info was available)
1. how much would it be to update ?
2. what Nav system is it? (Garmin?)
3. with the SD slot, can someone update the Nav themselves or is it dealer dependant?
This also makes for a great idea to have a Nav comparison article with most brands.
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I'm on the fence on having intergraded Nav in the car. Currently we have an old Garmin Nuvi. Back in 2009 for our Rocky Mountain trip, instead of buying a new system, Garmin has a discount for buying a lifetime update package. So now I've got a Nuvi which has lifetime updates free and I do them about twice a year.
I'd much prefer something that's neatly intergraded in the car and not have to deal with power supply, bringing it in and out, etc. However as mentioned, vehicle Nav systems are still very expensive and the biggest issue to me is updates. I have found some dealers don't even know 100% sometimes how you go about updating the systems.
In my mind, a good setup would be (say for a Garmin based system) to have the SD card slot with the car's system and be able to purchase a lifetime update package. Download updates on your SD card, insert into car and presto! No dealer visits and cost effective. (our lifetime update package was around $75 and allows up to 3 updates per year)
Nav vs. Smartphone.
I've NEVER been remotely interested in using a smartphone as my Nav. Part of this is the way I use ours.
It is for the most part simply on the general map and used as a visual guide. Usually I do my mapping and research prior to leaving and like having the road ahead on the screen (you can see upcoming roads way before you actually see them) Even when I use directions, I don't have the audio on.
HOWEVER....... a recent trip had us try Apple's map guide (or whatever it is) because my Garmin, although updated prior to the trip, couldn't locate an address. I was looking for a new brewery in the middle of rural Ontario and Garmin couldn't find it (not even by actual address) However the i-phone did find it. It was surprisingly really good. The only way I'd be able to use this however is with a co-pilot or if it can somehow show the mapping on the dash screen. The only issue (aside from how much data does it take?) is, my wife found it was really eating up her battery quickly.
My position right now is that if the vehicle I want, with the model I'd like comes with the Nav, that's fine.
However, paying extra for it is most likely not going to happen, but that would also come down to how and how much is it to update.
My experience now has shown that while the mapping itself may not change too much and you might get away with not updating it (always carry a regular map)....... I do think the value in the updates is in the information for stuff (restaurants, destinations, gas stations, etc..)