No, no... on the front of the panel. when the plugs on in they are so close to each other.... that when you clip the + and - with aligator clips they could touch very easily. sort of the reason why the put the + and - on either side of a car battery.... so that doesn't happen.
ORIGINAL: Mode One
The contacts of a banana plug would be inside the panel, when in use, how could they short out? I think Radio Shack has double plugs which might work.