Originally Posted by cpt_RedBeard

I'll share it here again just incase ;-)

The cable needs to be a otg cable in order to power the Hotwire. The 2.0 don't need it and can pull power from the RX8, but I'd prefer not to.

Here is a good cable to use: http://amzn.com/B00BFYH11Q

And to add to it. The app may still be in beta (thats a question for Randy) but it works fine. I've been using it for months. You shouldn't worry about using it.