The American Autowire 1968-72 Pontiac GTO Classic Update Kit (AAW510540) is a complete wiring solution designed to modernize your vehicle’s electrical system. This kit replaces the entire factory harness from headlights to taillights while supporting popular modern accessories. Whether adding electronic fuel injection, aftermarket gauges, or a modern stereo, this harness provides a reliable electrical foundation. Built with high-quality GXL wire and a new ATO fuse panel, it is engineered for a precise fit to ensure a professional, straightforward installation.
KEY FEATURES AND BENEFITS:
- Complete Vehicle Rewiring: Replaces every wire in the car, eliminating issues caused by aging factory wiring.
- Modern Fuse Panel: Updated ATC fuse panel offers reliability, clear labeling, and easy servicing.
- Accommodates Modern Accessories: Includes extra circuits for EFI, aftermarket gauges, and high-output charging systems.
- Simplified Installation: Wires are labeled every 3–5 inches, with original-style connectors for stock or aftermarket components.
- High-Output Charging Support: Includes an 8-gauge alternator wire and 175-amp mega fuse kit for high-output alternators.
SPECIFICATIONS:
- Included Components:
- Dash harness
- Engine and front light harness
- Rear body harness
- New ATO fuse panel and fuses
- Headlight switch with internal circuit breaker
- New floor dimmer switch
- Horn relay
- Original-style switch connector bodies
- Gauge cluster connectors and terminals
- Six-way power accessory plug
- 175-amp mega fuse kit with 6-gauge charge cable
- Full-color schematics and instructions
HOW TO USE:
- Preparation: Disconnect the battery and remove the old harness. Label or photograph connections for reference.
- Mount the Fuse Panel: Install the new ATC fuse panel in the stock location under the dash.
- Install the Dash Harness: Connect the dash harness to the gauge cluster, switches, and steering column.
- Install the Engine and Front Light Harness: Route through the firewall and connect to engine, alternator, lights, and horn.
- Install the Rear Body Harness: Run wiring to taillights, turn signals, and fuel tank sender.
- Final Connections and Testing: Reconnect the battery and test all systems for proper function.
BENEFITS OF USING AMERICAN AUTOWIRE 1968-72 PONTIAC GTO CLASSIC UPDATE KIT (AAW510540):
- Eliminates unreliable factory wiring to reduce risk of shorts or failures.
- Creates a clean and organized wiring layout for a professional finish.
- Provides labeled wiring and extra circuits for easier troubleshooting and modifications.
- Enhances reliability and safety by meeting modern electrical demands.
- Saves time compared to repairing or modifying old factory harnesses.
FEATURES:
- Vehicle-Specific Fit: Designed for 1968–1972 Pontiac GTO, LeMans, and Tempest.
- Durable Wiring: Constructed with heat- and abrasion-resistant GXL wire.
- Factory-Style Connections: Includes original-style connectors for easy installation.
- Custom Routing Flexibility: Extra-long leads on engine and rear harnesses.
- Gauge Cluster Disconnect: Exclusive system for use with stock or aftermarket gauges.
- Multi-Model Compatibility: Also fits 1968–1970 Tempest models.
- Guided Installation: Comes with full-color schematics and detailed instructions.








Reviews
There are no reviews yet.