The American Autowire 1979-80 Pontiac Firebird Update Kit (AAW510689) is a comprehensive wiring solution designed to replace and modernize the entire electrical system of your vehicle. Part of American Autowire’s “Classic Update” series, this kit is engineered for restoration and “resto-mod” projects that require more circuits and a robust system than the original factory harness. It provides a complete headlight-to-taillight wiring solution, ensuring a safe and reliable electrical foundation while accommodating modern components.
KEY FEATURES AND BENEFITS:
- Modernized Fuse Panel: Includes an ATC-style fuse panel and fuses for reliable, accessible circuit protection in the original location.
- Support for Aftermarket Components: Designed to accommodate EFI systems, aftermarket gauges, and modern A/C without splicing or custom wiring.
- Complete and Labeled Harnesses: Pre-built dash, engine, and rear body harnesses with wires labeled every few inches for easier installation and future troubleshooting.
- High-Output Charging System Support: 175-amp mega fuse kit and 6-gauge charge cable support modern high-output alternators.
SPECIFICATIONS:
- Wiring Material: GXL Automotive Wire
- Fuse Type: ATO (Blade-style)
- Main Dash Harness
- Engine and Front Light Harness
- Rear Body Wiring
- ATC Fuse Panel
- Headlight Switch with 26-amp circuit breaker
- New Floor Dimmer Switch
- 175-amp Mega Fuse Kit with 6-gauge charge cable
- Original-style bulkhead connectors
- Steering Column Connectors and Terminals
- Gauge Cluster Printed Circuit Board Connector and Terminals
- Hazard and Turn Signal Flashers
- Horn Relay
HOW TO USE:
- Prepare for Installation: Disconnect the battery and remove the old wiring harness. Lay out all new harness sections to familiarize yourself with components.
- Install the Dash Harness: Fit the pre-built dash harness in the original location. Use the gauge cluster disconnect system for easy connection to stock or aftermarket instruments.
- Install Engine and Front Light Harnesses: Route harnesses using original-style bulkhead connectors. Utilize extra-long leads for custom routing.
- Wire the Rear Body: Connect rear body wiring with extra-long leads to taillights, brake lights, and fuel sender unit.
- Connect Accessories and Power: Wire up EFI, aftermarket gauges, or charging system components. Connect the headlight switch, dimmer switch, and charging cable.
- Finalize Connections and Test: Double-check all wiring against schematics, reconnect the battery, and test lights, gauges, and all electrical functions.
BENEFITS OF USING AMERICAN AUTOWIRE 1979-80 PONTIAC FIREBIRD UPDATE KIT (AAW510689):
- Enhanced Reliability: Replaces brittle factory wiring with modern GXL wire and ATC fuse panel to reduce electrical failures and fire hazards.
- Simplified Installation: Vehicle-specific design, labeled wires, and pre-built sections save time and effort.
- Future-Proofing: Provides circuits and connectors for modern modifications, ensuring compatibility with future upgrades.
- Improved Safety: Built-in circuit breaker, fusible link protection, and modern fuse panel enhance safety and peace of mind.
FEATURES:
- Full 12-volt primary ignition feed for HEI and electronic ignition systems
- Extra-long leads on front and rear harnesses for custom routing
- Six-way power accessory plug for aftermarket items
- New horn relay mounted on the main dash harness
- New headlight switch with 26-amp internal circuit breaker
- Connectors and terminals compatible with original and many aftermarket gauges
- Full-color schematics and detailed instructions included
- Cluster harness disconnect system for easy service and assembly
- Switched trigger wire for electric fan relay
- Direct plug-in compatibility with most GM steering columns (1975-1980)







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