Car Auto FM Radio RF Modulator - Wired

FM RF Modulator. This unit is designed to be hard wired into the car. It interrupts the antenna signal and injects its own signal into your car's radio. This is a far better way to do it than external units, which are more susceptible to RF interference. Four frequencies are available, selected by dip switches. There are no instructions, so you will need an understanding of vehicle electronics. Pickup from Ascot Vale.