Another usb option

[threedogs]

http://www.ebay.com.au/itm/USB-Dual-Port-5V-Power-Charger-Socket-Outlet-Phone-12V-Blank-Switch-Hole-Car-4x4-/131435407728?pt=LH_DefaultDomain_15&hash=item1e9a292970

Heres another USB option may suit some better than others

[BSRT.Beast]

These are the same as the one in the auto elec thread they work really well 58464