Custom Autosound USA 740 User Manual (English)

Questions and Answers:

I
Ian LopezAug 6, 2025
How to fix a Custom Autosound USA 740 that will not turn on?
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  Alan MorrisAug 6, 2025
  If your Custom Autosound Radio isn't turning on, displaying no lights, and producing no sound, there are several potential causes. First, check the red (switched) and yellow (constant) power leads to ensure they are properly connected and receiving voltage within the range of 12-14.7 Volts. Next, verify the black ground wire has a solid connection. Finally, inspect the fuse on the back of the radio and replace it if it's blown.
T
Todd ClementsAug 11, 2025
What to do if my Custom Autosound Radio has lights but no sound?
- M
  Michael SerranoAug 11, 2025
  If your Custom Autosound Radio displays lights but produces no sound, the issue likely lies with the speakers or speaker wires. Ensure all speakers are 4 to 8 ohms. Check that none of the speakers are going to ground and that the speaker wires are not shorting to themselves or ground.
M
Matthew WalkerAug 17, 2025
Why is sound only heard on one side of my Custom Autosound USA 740?
- R
  Roy SmithAug 17, 2025
  If sound is only coming from one side of your Custom Autosound Radio, start by checking the speaker wire connections. Ensure that the balance control is set to the center position. If the issue persists, try reversing the speaker leads at the radio. If the sound remains on the same speaker, the speaker is likely faulty. If the sound switches to the other speaker, check the wiring and fader control on the radio.

Custom Autosound USA 740 Specifications

General

Brand	Custom Autosound
Model	USA 740
Category	Radio
Language	English

Custom Autosound USA 740 User Manual

Table of Contents

Questions and Answers:

Custom Autosound USA 740 Specifications