Why is my radio not turning on? The radio is not getting proper power and ground. The red wire (ignition input) and yellow wire (constant 12-volt input)...
My radio is turning on, but I have no sound. Speakers or speaker wiring is grounded. The speaker wiring could be touching the vehicle’s chassis or metal, causing it to...
Radio cuts in and out while car is running. Voltage to the radio is not consistent. Using a multimeter check that both red and yellow wires show at least...
What is a common ground speaker system? A common ground system means the negative (-) speaker wires in your car are connected to a common grounding point...
Will your radios work on a 6-volt system or a positive grounding system? RetroSound® radios are designed to work on 12-volt negative grounding systems only.
Amplifier Troubleshooting Will Not Power On Using a multimeter, check the voltage on the main power wire (B+) at the amp. It...