Owner's Manual

Do your radios work on 6 volt systems or on positive

ground systems?

No. Our radios are 12 volt, negative ground only. After-market

converters and inverters are available but must have at least 10

amps of continuous output.

I’m having problems getting the radio to turn on.

RetroSound

radios require 12 volts to both power leads. The red

lead (+12 volt accessory) goes to a switched power source, and

the yellow to a constant +12 volt power source. Using a volt meter,

check the voltage when the key is turned from “off” to “on”. If

there is a signicant drop in the voltage, the circuit the yellow lead

is attached to cannot handle the additional draw of the radio.

You will need to nd another circuit that can handle the additional

draw of the radio, or you will need to go directly to the battery.

What speaker wire do you recommend I use?

We recommend using 16 gauge wire for the speakers.

I have all 4 speakers connected to your radio and the display is lit

up like it is working, but there’s no sound coming out.

This usually indicates one of two things:

• Speaker wires touching each other or the vehicle chassis at

some point. Check each speaker lead from radio to speaker.

• Speaker impedance below 4 ohms. Older speakers are

usually not compatible with modern electronics.

A full line of compatible speakers are available on our website

www.retromanufacturing.com.

FREQUENTLY ASKED QUESTIONS