Power your trailer s taillights for a safer journey on the road by starting with a safer smarter wiring installation at home with the Tekonsha 118304 Tow Harness T-Connector Assembly. T-One Connectors eliminate the need to cut or splice wires. Simply find your vehicle s wiring harness connector unplug it and insert the T-One without needing tools. It includes a converter and 16-gauge bonded wire with 4-flat plug and cap as well as circuit capacity of 2.1 amps per side for turn and brake and 4.2 amps for a taillight. This particular model is compatible with the 2004 - 2010 Toyota Sienna All Styles.