The HWB60 meets IP67 weatherproofing specs. Wires plug into the back of the module using industry-standard Delphi Metri-Pack Series 280 tanged terminals. Here is our fuse box setup with the fuses and relays. It gets capped with a gasketed cover. You will also end up with a handful of wires to be integrated into your gauges or other vehicle wiring. These include tach output and speed output, among others.