Hello everyone, i have a 2015 like200i and it has work like a charm, but i let it rest for a few mont and now with a fully charge battery, when i put the key on the on position... Nothing works, not the headlight,horn, taillight...ext not even the dash. I test most of the thing with a volt tester and everything has power.... I need help before i gave up and take it to the shop so the can charge me pretty well for maybe something easy. Any tough???