I want to be able to park my car one of 2 ways in my garage. Will the 20' mobile connector be able to charge the car on the right? How close do I need to be to the front wall for it to work? I can't pull all the way forward because there are some shelves on the wall. Tesla's range diagram suggests it will be close. Will the Nema 14-50 adapters give me a little more range? If needed I guess I could get a 2-foot extension cord.