Here is a very simple mod for the FJ. Add a 2nd USB charging port. I decided to install my in the center console. This is very easy to do. You simply remove the gear shift knobs and then pull up on the console from the rear. You can then slide it towards the back of the FJ and out. Simply drill a starter hole and then use a Dremel tool to complete the job. For my wiring I used an Add-A-Circuit from Autozone. For around $25 you can add some nice power options. This adapter can charge an iPhone and iPad at the same time.
I purchased this from Sierra Expeditions: http://www.sierraexpeditions.com/index.php?l=product_detail&p=8670
Cooper Bussman Add a Circuit – http://www.autozone.com/autozone/accessories/Cooper-Bussmann-ATM-fuse-tap/_/N-25gq?itemIdentifier=32416&_requestid=96375