As long as you are running normal wattage bulbs, you wouldn't run into any issues. 55w low beams and 60w highs. I'm running 35w HIDs and 60w high beam halogens. As for the ground, any screw or bolt that is connected to the frame should work well. I ran a jumper wire from inside the connector on the depo wiring harness (where the yellow wire is) to a screw on the frame. There are other grounds in that area. Do the same for both sides. It won't overload the circuit. Let me know if you need more explanation.