I'm using the garmin glo gps unit. Gets glonass satellites in addition to the US system. I think the unit is comparable  in size to the dual unit. Bluetooth connection to my ipad mini, gets a location pretty fast and I have not noticed much signal loss in the forest.

Alistair

> On Nov 2, 2013, at 9:23 AM, Harry Hoffman <hhoffman@IP-SOLUTIONS.NET> wrote:
> 
> Hi All,
> 
> So, I thought i'd share my latest upgrades to the van.
> 
> For the speakers I went with:
> 
> http://www.theoontz.com/oontzangle.php
> 
> This speaker fits right in front of the dash just between the two heater
> vents. It's got non-slip pads so it doesn't move and the height is just
> perfect for listening.
> 
> It's bluetooth and has a audio in. Price was right, it sounds great for
> the money.
> 
> We'll see if there's any issues with running defrost settings and having
> the speaker sit there.
> 
> I also upgraded to a Nook HD+ for OBDII/GPS/music. I found a cheap one
> with a 9" screen. The newer Nook's have bluetooth so it's perfect.
> 
> Google maps now has a option to save maps for offline purposes.
> 
> Finally I bought a Dual GPS:
> http://gps.dualav.com/explore-by-product/xgps150a/
> 
> It also comes with a non-stick pad and sits on the dash to the right of
> the stock stereo with a clear view through the windshield. It comes with
> bluetooth too, and locks onto satellites so much more quickly then my
> phone does. Also, most phones have a cell-assist GPS and if you get out
> of cell coverages areas the phone's GPS won't work either. Problem solved!
> 
> Thanks for reading!
> 
> Cheers,
> Harry