Disconnect the vehicle's battery.This will prevent any electrical accidents while you are working.
Choose a mounting location for the amplifier. The amplifier should be mounted in a cool, dry location with sufficient airflow. Make sure that the amplifier is not mounted near any heat sources, such as the engine or exhaust system.
Mount the amplifier. Use the supplied screws to mount the amplifier to the chassis of the vehicle. Make sure that the amplifier is securely mounted.
Connect the power wires. Connect the positive power wire to the positive terminal of the vehicle's battery. Connect the negative power wire to the negative terminal of the vehicle's battery. Use high-quality 4-gauge or 8-gauge speaker wire for the power connections.
Connect the ground wire. Connect the ground wire to a clean, unpainted metal surface on the chassis of the vehicle. Use a high-quality 4-gauge or 8-gauge speaker wire for the ground connection.
Connect the speaker wires. Connect the speaker wires from the amplifier to the speakers. Use high-quality speaker wire for the speaker connections.
Connect the RCA cables. Connect the RCA cables from the head unit to the amplifier. Use high-quality RCA cables for the RCA connections.
Turn on the head unit and the amplifier. Make sure that the volume is turned down all the way on the head unit. Set the gain on the amplifier to the minimum setting. Slowly increase the gain until you can hear the music clearly.
Adjust the settings on the amplifier.Adjust the bass, treble, and other settings on the amplifier to your liking.
Reconnect the vehicle's battery. Be sure to reconnect the positive terminal to the positive post and the negative terminal to the negative post. Check the amplifier and listen for any distortion to indicate if everything was hooked up correctly.Turn on the head unit and listen to the music.Test the system to make sure everything is connected properly and works as intended.
That's it! You have now successfully installed an Image Audio Concepts IA-9901 car audio amplifier.