I want to install a sat nav in my B6 but i don't want it up on the dash or glued to the screen, i want to put it in the gap above the ash tray ( slightly angled ) i don't smoke so the ash tray is never used, question one, can i power it from somewhere other than the fag lighter as i use that for another gizmo to play my music through Bluetooth from my phone, question two any recommendations for a unit, prefer a more rectangle shape than a curved edge one so it sits better in the gap, oh & if it has Bluetooth will it conflict with the parrott for my phone.