I am installing a new inverter / charger ( Xantrex ) to replace my Trace. The Trace worked without an equipment ( chassis ) ground; however the Xantrex unit requires it be attached. My question with both 24VDC and 12VDC on my Liberty is there any danger of damaging the electronics in the engine controls? I have installed all types of equipment in vehicles over the years, but never on a unit with multiple voltages. Since the Trace did not have an equipment ground I would be adding something new on an older coach. Ken