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Route 9 Universal Kit
The Route 9 Universal Wiring System is the newest addition to our growing line of universal wiring systems designed for builders requiring basic electrical system functionality. Taking the design cues from our Highway 22 and Highway 15 kits, American Autowire has developed an entry-level kit that provides a complete vehicle electrical solution in a compact, “bulletproof” package. This is the perfect wiring solution for hot rods, rat rods, or any vehicle requiring a basic, full-function electrical system. Complete, full-color instructions are included with each kit to “Make Wiring THAT Easy”. Important features of the kit include:
New compact ATO-Style fuse panel featuring Battery, Ignition and Accessory power busses. All high amperage output circuits incorporate the same superior spring steel reinforced terminals that are used in our Highway Series wiring systems.
- The fuse panel and wire connections are labeled to identify all circuits by description and their respective fuse ratings. Circuit wiring uses superior insulation that is color coded and printed at 3-inch intervals with a circuit description.
- The combination turn signal/hazard flasher mounted on the panel supports LED lighting for front and rear directional lights and dash turn signal indicator lights.
- Horn relay mounted inline on the harness.
- Steering column wiring supports any user-specified turn signal switch.
- Instrument Cluster wiring is included for oil, water, fuel, voltmeter, and tachometer gauges. Wiring is also included for directional and high beam headlight indicators.
- Engine wiring includes feeds for the coil, oil pressure sender, water temperature sender, tachometer, starter, alternator, and distributor. Main power to the fuse panel and power output from the alternator are supplied through a heavy gauge feed and fusible link protection.
- Extra long wire lengths allow for custom wire routing.
- Front lighting includes extra long leads that can be routed for stock or custom appearances of the headlight, parking light, and directional light leads. Dimmer switch wiring is identified. Headlight connectors and terminals are included.
- Rear body lighting accommodates turn signal, license light, and brake lights with long length wires that allow for original or custom routing.
- Sender lead wires are provided for electric fuel tank sender units.
Optional add-on kits are available for use with the Route 9 kit as follows:
500341 – GM headlight switch complete with connector and terminals
- 510805 – Dash mounted ignition switch complete with connector and terminals
- 500042 – Floor mounted dimmer switch
- 500286 – Floor dimmer switch connector and terminals
- 500257 – GM column mounted ignition switch connector set with terminals
- 500204 – GM HEI distributor ignition power connector and terminal
- 500205 – GM HEI distributor tachometer connector and terminal
- 500428 – GM Steering column turn signal switch connectors and terminals (accommodates both 3 7/8 and 4 1/4 inch connectors)
- 510644 – Electronic speedometer connection kit with connectors and terminals
Severe Duty Universal Kit
The new Severe Duty Universal full vehicle wiring kit is a powerful, weatherproof electrical system designed for use in rugged environments. It features an all new compact fully sealed 20 circuit fuse box with electronic flasher and 35 amp relay. The fuse box is protected by our new sealed manually resettable 200 amp circuit breaker for maximum reliability in harsh outdoor environments. The kit includes:
- All new fully sealed 22 circuit fuse box with circuitry that is proprietary to American Autowire is rated at 200 amps.
- Features 8 optional accessory circuits.
- Electronic Flasher for use with LED turn signals.
- New 200 amp sealed manually resettable circuit breaker offers complete system protection, as well as providing the ability to shut the power to the system off in the event that repairs are necessary.
- Main harness come pre-terminated at one end in fully sealed connectors with over 200” of tough heat resistant GXL wire with the primary functions printed every 2” for easy installation and diagnoses.
- Power harness comes pre-terminated at one end in fully sealed connectors with over 100” of tough heat resistant GXL wire.
- The accessory kit includes a sealed connector that plugs into the fuse box in the optional outlet. It includes seals and terminals with 4x400” of 18, 16, 14, and 12 gauge wire in different colors for all of your additional power requirements.
- Instrument Cluster wiring is designed with a “cluster harness disconnect” system for easy service and assembly. The system will also connect into most popular aftermarket gauges such as DAKOTA DIGITAL, CLASSIC INSTRUMENTS, AUTOMETER, VDO, and others.
- Subkits for connecting turn signals, headlights, tail lights, parking lights, brake lights, gauges, third brake light, license plate light, and basic engine functions and sensors included. All subkits are pre-terminated at one end and provide long lengths of tough heat resistant GXL wire with the function of each wire printed every 2”.
- A 30 amp headlight switch and dimmer switch are provided for your convenience. Connections for these switches come pre-terminated to make installation faster if you choose to use these switches.
- Engine wiring includes feeds for coil, tach, water temperature, oil pressure, electric choke, transfer case warning lamp, under hood lamp, transmission kickdown, and electric speedometer (if needed).
- Front lighting includes extra long leads. All head light, parking light, directional light, and side marker light leads, along with horn.
Highway 15 Plus Universal Kit
Since its introduction in 2003, the Highway 15 Universal Wiring System has been the perfect choice for tight spots in kit cars, roadsters and coupes. We’re exceptionally grateful to be part of so many builds, and have taken note of some suggestions from over the years to make a great product even better. 
Our goal with the changes in the Highway 15 Plus is to preserve the same feel as the original, with some modernization and ease-of-use improvements for both backyard and professional builders. With those thoughts in mind, American Autowire is pleased to introduce the Highway 15 Plus!
New features include:
- A built-in LED flasher to support LED turn signals without the need to purchase an additional item.
- A back up light feed and power wires to make the harness easier to install in a more modern vehicle.
- Improvements to our instructions to cite a wider range of examples and real-world scenarios. The panel labeling has also been updated along with the above physical changes, including wording modifications for enhanced clarity.
- Our new high amp alternator and main power connection kit. This allows for the use of high amp alternators, and provides an even better level of fuse protection for the panel and charging system. This new connection kit utilizes 6ga wire and two 175amp Megafuses.
- Extra connectors and wiring to more easily support a 4-headlight system without an additional add-on purchase.
- Longer neutral safety wires for cars with console shifters.
- An additional ignition circuit to support aftermarket components.
- Improved ignition switch with mating connector and 4 additional accessory and ignition terminals. Uses a square GM-style key.
These original features that made the Highway Series the most popular wiring system available are still part of the new Highway 15 Plus:
- G-10 composite panel base measuring 4.5”L x 4.5”W x 3.5”H, and nylon 6/6 panel components.
- GXL/XLPE GM color-coded wire.
- Easy-to-read wire labeling every 3”-4”.
- Self-locking screw clamp interface.
- American Autowire’s signature gauge cluster disconnect.
- Ignition, headlight and dimmer switches are included.
- Full-color, tabloid-sized, step-by-step instructions.
Highway 22 Plus Kit
Our Highway 22 has long been the flagship universal system for wiring high-tech, high-end custom vehicles. To this point, we’ve seen and heard evidence of customers installing the kit in just about every make or model vintage (and some modern) vehicle, off-road trucks and even industrial equipment.
We’re exceptionally grateful to be part of so many builds, and have taken note of some suggestions from over the years to make a great product even better. With those thoughts in mind, American Autowire is pleased to introduce the Highway 22 Plus!
Our goal with the changes in the Highway 22 Plus is to preserve the same feel as the original, with some modernization and ease of use improvements for both backyard and professional builders.
The full list of new features is below: 
- Each kit will now include a built-in LED flasher to support LED turn signals without the need to purchase an additional item.
- We’ve added back up light feed and power wires to make the harness easier to install in a more modern vehicle.
- The pre-installed 20 amp relay can now be easily changed to function as either a keyed 12 volt or ground triggered item.
- We’ve improved our instructions to cite a wider range of examples and real-world scenarios. The panel labeling has also been updated along with the above physical changes, including wording modifications for enhanced clarity.
- The wiper circuit has been upgraded to a 20 amp fuse to support all aftermarket wiper systems. This has been made an accessory circuit for more adaptability.
- The AC/Heat fuse has also been moved to an accessory circuit to eliminate draw from the blower motor while the vehicle is being started.
- All kits will feature our new high amp alternator and main power connection kit. This allows for the use of high amp alternators, and provides an even better level of fuse protection for the panel and charging system. This new connection kit utilizes 6 ga wire and two 175 amp Megafuses.
- Extra connectors and wiring have been added to more easily support a 4-headlight system without an additional add-on purchase.
- Longer neutral safety wires for cars with console shifters.
These original features that made the Highway Series the most popular wiring system available are still part of the new Highway 22 Plus:
- G-10 composite panel base measuring 7.5”L x 4.5”W x 3.125”H, and nylon 6/6 panel components.
- GXL/XLPE GM color-coded wire.
- Easy-to-read wire labeling every 3”- 4”.
- Battery and accessory power expansion via heavy duty power studs on the panel.
- Self-locking screw clamp interface.
- American Autowire’s signature gauge cluster disconnect.
- Ignition, headlight and dimmer switches are included.
- Full-color, tabloid-sized, step-by-step instructions.
 
Highway 15 Nostalgia Kit
The Highway 15 Nostalgia is the retro version of our popular 15 circuit universal kit. It packs the same features as the standard Highway 15, but includes 50’s inspired braid and lacquer coated wire. We still use our standard high temperature GXL wiring underneath, but the high gloss finish and textured wires are the perfect touch to finish a period correct hot rod.
The Highway series was developed to handle the most demanding power requirements and accessories. With the Highway 15 you have the most flexibility in fuse box placement, and the freedom to customize your vehicle however you like. Each system comes with complete, easy to understand instructions, all the necessary wiring to construct a complete chassis harness and the most durable and adaptable fuse panel in the industry.
Power is distributed through stout 6 gauge buss bars, and self-locking “Hooke's Law” clamp connections make sure your final terminations stay in place for the life of the car.
The Highway 15 is a brute in a small package. Built with the same heavy duty internal components as those used in our Highway 22 panel, it can easily handle the basic power requirements of any vehicle. Its size makes it the perfect power center for roadsters, T-Buckets, kit cars, race cars or any other vehicle where basic operational circuits are required.
Additional Features Include:
- Ample lengths of vintage-style wire
- A 175 amp MegaFuse for system protection
- Built turn signal and horn relays
- Gauge cluster disconnect system
- Headlight, ignition and floor dimmer switches
- GM style steering column connection kit
- Accessory sub harnesses for wipers, heat/air conditioning and radio
- Complete installation instructions
- The best technical and product support in the industry
Panel dimensions are 4.5” L x 4.5” W x 3.5” H
Builder 19 Kit
The Builder 19 is the perfect under dash choice for tight spots in kit cars, roadsters and coupes. A streamlined 6½" x 3" x 2" footprint hides the same superior spring steel reinforced terminals used in the Highway Series wiring systems, making the Builder Series second to none in durability and reliability. This makes it the ideal underdash solution when space is at a premium in a build that won’t be lacking in high-draw accessories.
As with all of our customizable kits, extra-long leads are provided to make hiding engine compartment and rear body wiring simple. Each kit includes an electric fan relay trigger, heavy gauge alternator/main power feeds as well as components to assemble a gauge disconnect harness for easy serviceability.
Additional Features Include:
- Headlight, ignition and floor dimmer switches
- GM style steering column connection kit
- High quality pre-labeled GXL wire
- Dedicated 6 way accessory power feed plug
- Complete installation instructions
- The best technical and product support in the industry
Power Plus 20 Universal Kit
The Power Plus 20 is a complete, integrated wiring system incorporating a factory style pre-wired fuse box. Power Plus kits are designed to offer an economical and convenient wiring solution by eliminating disconnects and sub-harness assemblies in favor of direct run feeds to switches and the fuse panel. These kits offer a more streamlined installation and less work for you!
Additional Features Include:
- GM steering column and ignition connections
- Headlight and floor dimmer switches
- High quality pre-labeled GXL wire
- Heavy gauge alternator and main power feed connections
- Dedicated 6 way accessory power feed plug
- Complete installation instructions
- The best technical and product support in the industry
Power Plus 20 systems are best suited for under dash installation on the left side of the vehicle.
Panel dimensions are 5 ½ x 4 ½ x 3 inches.