Ok guys, here's how I mounted mine.
I got his mount from Amazon http://www.amazon.com/gp/product/B00...?ie=UTF8&psc=1
I ditched the phone holder but kept the mount. The UG mount slides right on.
I ran the cord through the accessory pocket behind the keys and cut a hole big enough for the connector in the rear. The hole is in the cup itself which pulls right out. I already had my brake controller wiring through there.
I hope that's clear.