A samsung galaxy tab 7" plus fits perfectly with a nav oem dash.
Just keep in mind the bottom head unit is bigger than the bottom head unit that is in the touring navigation model. So you will have to do a small amount of cutting. Nothing crazy.
Here's mine below. Very similar to dreamers. Except he cut the bottom head units dash slot to slide the aftermarket radio down a bit. That way the top nav oem dash would fit snug.
What I did was cut the inside of the oem dash at the bottom(the lip) so it would slide over the bottom head unit.(it will cover the cd player, but who uses that? ) Mine required much less work
I plan on buying another tablet and fitting it at the bottom part of the nav dash and run obd ii bluetooth to it.
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