my Lenono 7" a2107 tablet install in a 2007 Ford Focus
currently I have 3 video of the progression, today I did the most work and it think it looks great, best of all it is removable

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from begining to end the install cost me less than $200 and yes that includes the price of the tablet
I will post up video tomorrow

I use
CarHome Ultra

NavFree USA (if you use the stock google software, you must use your data plan, this actually uses just the built in GPS
so it actually works like a REAL GPS, not a phone triangulation (meaning you need the data connection from your phone "tethered" or a 3g tablet)