Looking for Help. I have a 2012 250 SHO. There are 2 ground wires coming out of the lower unit. One is a attached to a large bolt and the other attaches in a small hole where my motor stick support rests. This small broke off and I can't tell how it is to be attached. It is not treaded as far as I can tell. Is a rivet or a special piece that hold it on. I always have trouble uploading pics but if you guys think it would help I will try. thanks.