I agree Ted i thought you were talking about one wire to the aluminum panel to ground all the gauges.Nope you still have to run seperate ground wires to each gauge.Ted Brown said:They may be plastic, but it is soooo much easier to mount everything to that one panel, then install it in one easy movement and just plug in the gage wiring and switch harness into the main harness, no more bending under a dash, not for my back.. hehe and besides I am lazy, no more work than is really needed, I say this is the way Semi trucks do a lot of their dash panels, flop out the whole thing to work on it... That;s where I got the idea years ago...