Review on Upgrade Your Toyota's Sound System with Metra 70-8117 Factory Amplifier Harness for JBL Speakers | 2004-Up Compatible by Hector Nito

Works great and easy to install. Perfect fit for 2006 Toyota Sequoia with JBL factory amp. I had torn speakers so I replaced the front and back along with the aftermarket head unit. I originally used a plug that uses a factory amp. The sound was distorted. Installed and everything is fine now. Simply unplug the amplifier and plug it into the meter's plug. Route the wiring and connect the appropriate wires to the radio wiring harness. The other Metra connector plugs into the socket next to the radio and plugs into the radio's wiring harness. The only thing missing from the wiring harness was the orange wire for the dimmer, but I never connected it to my radios.