I was foolin around with one of my controllers the other day and found that you can fit them into the "grocery bag" hooks. Turn the controller upside down and and slide the center of it (kinda where it says Sony) into the open hook. The first time its a bit of a squeeze but the plastic will expand a bit and work awesome. I tucked the wire where the plastic trim of the seat hinge meets the fabric on the armrest side of both seats. It actually looks like the hooks were made for this and now I can finally use em for something. Nothin like a free, no modification needed mod.

 

I use the "grocery bag hooks" to hook my wireless headphones on, they work perfectly!!

 

also a hot idea