New Metra 72-8104 speaker harness adapter that is used to connect aftermarket speakers to the factory connectors in select select Toyota vehicles. Metra 72-8104 is a speaker connector harness that is designed to connect aftermarket speakers to the factory speaker harness in select Toyota vehicles. It is a quick and easy installation and no cutting is needed. The harness plugs directly into the factory harness and has two female quick-slide connectors on the other end to attach to the new aftermarket speakers. The Metra 72-8104 is a good choice for anyone who wants to upgrade their factory speakers to aftermarket speakers without having to cut the factory harness. It is also a good choice for anyone who wants to install aftermarket speakers in a Toyota vehicle without having to worry about wiring the speakers directly to the head unit. Overall the Metra 72-8104 speaker connector harness is a good choice for anyone who wants to upgrade their factory speakers to aftermarket speakers without having to cut the factory harness. It is also a good choice for anyone who wants to install aftermarket speakers in a Toyota vehicle without having to worry about wiring the speakers directly to the head unit.