Using this AuviTran AVKit - ES with your Yamaha AD8HR is easy. First, make sure your Yamaha AD8HR is turned off. Then, take the kit out of the original box and connect the necessary cables to the device. After that, you can turn on the AD8HR and start using it. When using the kit, keep it away from liquids and extreme temperatures. Also, don't pull on the cables too hard. For maintenance, clean the cables with a soft, dry cloth regularly. If you notice any damage, stop using the kit immediately and contact customer support.