2008 Big Bear 250 - Any idea where the negative wire from the battery is supposed to ground. I realize it could go a number of different places but I was curious where the OEM location is? I have attached a pic of it not grounded. I have about 8 inches each direction that I can mount it but I don't see any existing bolts or holes on the frame in the immediate area that look like would be a fit. Any ideas would be appreciated.