[jhautz]

The red jumper is tucked under the shrink wrap on the battery lead end of the bk controller. It might take a little looking to spot it and if the shrink wrap goes past the end of the actual circut board it might be hard to get to. Its on the bottom side of the board. And on my BK its actually more of and orange color rather than red.

BTW: I would put some shrink wrap or electrical tape over the exposed wirtes where the bec wires are attached. Shorting those by accident would be bad.