Cigerette lighter socket on my bike blowing the fuses in the USB charging thingies.Yesterday I thought I just check its still working on the one I've had for ages and poked it in the hole and it blew straight away,thought maybe its cause it's old and corroded inside.So I bought another one on the way home from work and put it in and the light came on,bingo turned round to get my phone and the lead to check it will charge as soon as I turned back the little light flickered and it blew that one.Checked the wires for damage and the only thing I found was the positive wire was a little squeezed in one place,would that be the problem?cheers gary