Upgrade your classic ride with the GM 1970 Buick Fullsize/Riviera Rear Window Defroster Extension Wire Harness and Lead Wires. Designed specifically for seamless compatibility, this high-quality wiring solution ensures that your rear defroster works flawlessly, providing maximum visibility and safety in inclement weather. Don’t settle for outdated or unreliable alternatives; invest in this premium harness that stands the test of time and keeps your vehicle at its peak performance.