I read on here about the ease of install on a usb charger. I bought one and decided to tie in directly to the battery which meant I had to remove a few pieces of plastic to fish the wires through the center of the frame...no problem ! I was buttoning up the job and was down to the two screws in the battery box when disaster struck ! I dropped a screw in to the oblivion of the middle of the frame area and could not find it...I then learned how to disassemble the entire plastics set which only took about a week (with frustration time included) and another week to put it back together slowly and carefully...on a good note my daughter accidentally figured out that the allen wrench screws perfectly pop and remove the pushpins (that seem to be everywhere). I'll be back next time I try something else...