Harry, I have done this.  I installed the Yada BT50326F.  You can see what
it looks like here:
http://www.amazon.com/Yada-BT50326F-1-Wireless-Back-Up-Bluetooth/dp/B0081L8SWM/ref=pd_sxp_f_pt

The only two real problems with it are that the mirror itself is a bit
bigger than the stock Vanagon mirror.  This makes the sunvisors hit on
either side once you install the mirror over your old one.  It would be
nice to try to find one that has a mirror unit that is similar in length to
the Vanagon to avoid this.

The other fault is that even at it's brightest the lcd screen is too dim to
easily be seen in the day time.  You can use it and see it then, but it
should be brighter.  Believe me I tried to make it brighter with the
settings and it helped a little but not enough.

The bluetooth hands free calling part works great with my Android phone.  I
just hop in, it syncs in a few seconds and I am getting calls or making
calls and they are nice and loud, and people that I am talking to say they
can hear me just fine.

This is an older, now defunct version.  Maybe the newer Yada product would
work better?  I really like the BT part of it and the camera works fine, it
is just that you can't see the screen like you should until it starts
getting dark.  At night the camera and screen work great.

Hope this helps you out.

Ken Wilford
John 3:16
www.vanagain.com

On Sat, Jun 22, 2013 at 10:00 AM, Harry Hoffman
<hhoffman@ip-solutions.net>wrote:

> Hi All,
> I'm looking to do some electronic enhancements (backup camera/GPS) and
> while researching found lots of articles referencing integrated screens
> within rearview mirrors.
> Has anyone added one of these rearview mirrors?
>
> Cheers,
> Harry

--
Thanks,
Ken Wilford
John 3:16
www.vanagain.com