Comparison of nav bypasses?

[branded]

Hello all,

I've located three navigation bypasses on a few forums (including this forum), and am curious what types of experiences people have had:

http://www.carkitcompany.com/infiniti-fx35/remote-bypass-kit-2010-12
http://www.beatsonicusa.com/nav-dvd-bypass/nissan-infiniti/beatsonic-tvk-43.html
http://www.kptechnologies.com/products.php#/6


What do you all think?


Thanks,

Matt