Lay out light bars, relays, switches, fuses, and batteries on an outline of your actual vehicle. Run color-coded wires by gauge, get a parts list, and share a view-only link with your installer or your forum thread.
Relays with 30/85/86/87 terminals, lighted rockers, fuse blocks, bus bars, isolators, winches, 7-way trailer plugs, and a custom block for anything else.
Pick year, make, and model to drop in a top or side outline: full-size and mid-size pickups, SUVs, Jeeps, vans, UTVs, ATVs, and bikes.
Drag terminal to terminal. Set color, tracer stripe, AWG, and length. The built-in calculator suggests a gauge from amps and run length.
Every part, every wire run, and every connection in one table. Export it as CSV and take it to the parts counter.
Anyone with the link can pan, zoom, and read the connection list, but can't change anything. Turn the link off at any time.
Download a high-res PNG or vector SVG, or print on the light "paper" theme to keep in the glovebox.