Today were going to be taking a look at the T1 vehicle wiring harness with the four-pole flat trailer connector. This product is going to fit a 1999 to 2005 Pontiac Montana, 97 to 2004 Oldsmobile Silhouette, 97 to 98 Pontiac Transport van, and a 97 to 2005 Chevrolet Venture. Its going to provide your four-way flat trailer connector to the back of your vehicle to power your trailer signal lights.… see more >