Hi, I've just bought 2014 st-limited and would like to install a usb charger. My question is how and where to tap in a line for the power I dont want to bring it directly to the battery . I am comfortable tapping a line but dont no how to tap in the fuse box. The ST Limites does not have gauges but is the harness there?. If someone did install a charger and have some pics it will be very helpful

thanks
Jack