American Autowire Highway 22 Plus Universal Wiring System

American Autowire Highway 22 Plus universal wiring system | 22 circuits | Part number 510760 Questions on availability or lead time? Contact Fesler USA before you order and we will confirm it for you. Why this kit What's included Specs Fitment Installation FAQs The Highway 22 Plus is American Autowire's flagship universal wiring system: 22 circuits, a compact composite fuse panel, and GM color-coded wire labeled along its length. It is built for custom and restomod builds running modern accessories, with a built-in LED flasher, a high amp alternator and main power connection kit, and ignition, headlight, and dimmer switches in the box. 22 CIRCUITS. LED READY. BUILT FOR HIGH AMP CHARGING SYSTEMS. Why builders choose the Highway 22 Plus Built-in LED flasher: Supports LED turn signals without buying a separate flasher. High amp alternator and main power connection kit: Uses 6 gauge wire and two 175 amp Megafuses to support high amp alternators and protect the panel and charging system. Configurable 20 amp relay: The pre-installed relay can be set up as keyed 12 volt or ground triggered. Upgraded wiper circuit: 20 amp fuse on an accessory circuit to support aftermarket wiper systems. AC/heat on an accessory circuit: Keeps the blower motor from drawing power while the engine is starting. Four-headlight support: Extra connectors and wiring are included, with no add-on purchase needed. Back up light feed and power wires: Makes the harness easier to install in a more modern vehicle. Longer neutral safety wires: Sized for cars with console shifters. Room to expand: Heavy duty power studs on the panel for battery and accessory power expansion. What's included 22 circuit fuse panel with pre-installed 20 amp relay and built-in LED flasher GXL/XLPE GM color-coded wire, labeled every 3 to 4 inches Ignition switch, headlight switch, and dimmer switch High amp alternator and main power connection kit (6 gauge wire, two 175 amp Megafuses) American Autowire gauge cluster disconnect Connectors and wiring for a four-headlight system Full-color, tabloid-size, step-by-step instructions Specs Panel Circuits: 22 Panel base: G-10 composite Panel size: 7.5" L x 4.5" W x 3.25" H Panel components: Nylon 6/6 Terminal interface: Self-locking screw clamp Wire and power Wire: GXL/XLPE, GM color-coded Labeling: Printed every 3 to 4 inches Main power: 6 gauge wire, two 175 amp Megafuses Relay: 20 amp, keyed 12 volt or ground triggered Part number: 510760 Fitment This is a universal wiring system, not a vehicle-specific plug-in harness. It is designed for custom vehicles of nearly any make or model, including builds with console shifters, four-headlight front ends, LED lighting, and high amp alternators. Not sure which kit fits your build? If you do not need all 22 circuits, look at the Highway 15 Plus. If under-dash space is tight, look at the Builder 19. Contact us and we will help you pick. Installation Instructions: Full-color, tabloid-size, step-by-step instructions are included. Wire identification: GM color-coded wire with labeling every 3 to 4 inches makes each circuit easy to trace. Service access: The gauge cluster disconnect lets the cluster be unplugged for service. Professional installation recommended if you are not experienced with automotive electrical work. Frequently asked questions Will this kit run LED turn signals? Yes. Every Highway 22 Plus kit includes a built-in LED flasher, so LED turn signals are supported without buying an additional flasher. Can I use a high amp alternator? Yes. The included alternator and main power connection kit uses 6 gauge wire and two 175 amp Megafuses to support high amp alternators. Are switches included? Yes. Ignition, headlight, and dimmer switches are included in the kit. How big is the fuse panel? The panel base measures 7.5" long x 4.5" wide x 3.25" high. Is this harness made for one specific vehicle? No. The Highway 22 Plus is a universal system for custom builds, not a direct-fit harness for one make or model. Rewiring as part of a full interior build? Plan the wiring alongside your dash, gauges, and panels. Browse Fesler interior products. Questions about circuits, fitment, or which kit suits your build? Contact Fesler USA. We will help you plan it right.