Yukon XL 2500 4WD V8-6.0L VIN N (2006)
Relay Block - I/P - C7 (With RPO Code Z82 W/Electric Trailer Brake Jumper Installed)
Relay Block - I/P - C8 (VYU)
Relay Block - I/P - C7 (With RPO Code Z82 W/Electric Trailer Brake Jumper Installed)
Relay Block - I/P - C8 (VYU)