I'm considering installing a charging mount for my cell phone, and to avoid cable clutter I want to hardwire the mount to the car's existing wiring somewhere behind the dashboard.Has anybody been doing that? Or have been disassembling the dashboard for some reason or another? In that case, how can it be done? In the "old days" it was just a matter of removing a car's radio, and you would then have somewhat easy access to a 12V supply, both "always on" and "ignition controlled". But with the integrated radio in the Up! (as well as most new cars), there's no easy way of getting to a power source.