Anyone ever had a grinding sound while on reverse on their Maxima with a CVT (mine is a 2007)? I am far from home ~360 miles away visiting some friends and it started doing this this morning. I took it to the dealership around here but an idiot hit the junction box which the dealership uses to get it's power and they are not open tomorrow. The car is a certified pre-owned vehicle maxima with 14k. Any help would be greatly appreciated.