We need a OEM wireless car charger asap! In the meantime, this DIY setup works for me! I know...it's butt ugly and clunky, but I really appreciate the ease of handling the 920 in the car without hooking up wires and dragging one along when I want to handle the 920 while driving. BTW, the inverter is $15 and the charging pad sits in a $20 spiderpodium that can be twisted to give a snug fit in the cupholder and around the pad. Both items are on Amazon.