This genuine OEM NORS Delco GM 16020530 radio speaker control knob is the perfect replacement for your old or damaged one. It is compatible with a variety of in-car entertainment systems and comes in a sleek black color. The unit type is a single unit and the manufacturer part number is 16020530. The speaker control knob is a vital component for your car's sound system, allowing you to adjust the volume and tune/fade the radio. This ACDelco (OE) part is made in the United States and is perfect for vintage cars. The manufacturer warranty may have expired, but the quality of this product speaks for itself. Upgrade your car's sound system today with this Delco GM 16020530 radio speaker control knob.