Using Tipstir customized HoneyComb 2.1 ROM. Car charger that I bought off ebay, http://cgi.ebay.com/ws/eBayISAPI.dll...=STRK:MEWNX:IT. I confirmed with the seller that they use 2A so they don't ruin the batteries. Seem to work very well, the spring cord is kind of short but I stretch them to reach the COBY's. Links to the car head rest mounts, are. http://www.monoprice.com/products/pr...seq=1&format=2. I had to modify them to work upside down since my wife's SUV is a Toyota Sequoia. In the user comments section on monoprice web site it explains what needs to be done to flip them. I also sawed off the ends of the clamps to make them shorter, very easy to do with saw. With the cut off ends I use strong double sided adhesives and taped them to the bottom of the mount to give support to the COBY. See pictures. I did not drill a hole like or create the L bracket like the user comment at monoprice, just used the cut off end. The same one goes for double the price on amazon, http://www.amazon.com/DVD-Mount-for-...5346540&sr=8-2. As you can see, it gets very good reviews at both sites. Let me know if you have any questions. My 3 daughters are loving their new toys, also with wifi hotspot turned on on my phone gives them internet capability on long trips.