If something goes wrong with the amplifier of a car audio system, the first things to check are the constant power, the remote power, the ground and the RCA signal. Discover how a 12-volt test light can be used to test car amplifiers with help from a car audio specialist in this free video on troubleshooting car audio amplifiers.
Expert: Josh Barber
Bio: Josh Barber is the owner of Top Tints, which has been in business for over four years.
Filmmaker: Nathan Moffett