I have both a standalone GPS device and a radar detector that sits on the dash. I've seen some solutions such as
http://www.stealthcords.com and
http://www.invisicord.com where it taps in to the power coming from the rear-view mirror, but that was specifically for radar detectors, and it also requires the radar detector to sit pretty high up on the windshield (right under the rear view mirror).
I'm looking to have both these devices sit on the dash without all the wires running to the cigarette adapter on the console. Does anyone have any suggestions or elegant solutions for something like this?