anyone know how well the Empeg takes Vibrations ?

I'm going to have to personally show you how to use the search feature in the FAQ. Entry here.

Question: Why would mounting it in the amp rack be any different than mounting it in the dash in terms of vibration?

In any case, the remote extender and cheesy camera thing would probably work. Even better, a steering wheel remote. I'd be curious to see someone actually get the video camera trick working and show photos of it. I want to see the Empeg face displaying on a car-DVD screen.

So which GPS unit are you thinking of getting?