Has anyone found any USB-powered sensor bars that actually works? I've bought two separate listings on eBay - the first seller also gave me a free replacement... and all three don't work at all. I plug them into a USB port, no IR light comes from the LEDs (if the stupid thing even has LEDs)... I also tried a wall plug, same result. And obviously the Wii remote won't see it if my camera won't. (Tested it...) I'm beginning to thing these are all scams, where someone just cuts the normal wires out and puts a USB plug but doesn't hook it up fully. I saw a mention of a USB powered sensor bar in another thread, and I'd really love to have one, since now that I have both a Wii and Wii U, it would be easier to have one sensor bar that's always on (since the Wii's USB ports are always on, as far as I know) that I can use with either... the battery powered ones always die quickly. Has anyone made a cable where you can plug the normal sensor bar plug in and it has a USB end? Or can someone recommend a USB sensor bar that actually works? Because this is just pathetic. I need to contact both eBay sellers and demand refunds.