User's Manual

FREQUENTLY ASKED QUESTIONS

I have your radio with an amp connected, but hear a

whining/buzzing sound through the speakers when I step

on the accelerator.



pitched noise that varies with the engine’s RPM, there are many

possible solutions:

• 



• 

• 



• On rare occasions, noise can be introduced through

the antenna lead. If disconnecting the antenna makes

the noise go away, you need to replace or repair

the antenna plug where it goes into the radio.

USB ERR,



• 



.m4a format and need to be converted to .mp3

format, which can easily be done using iTunes.

• 



• 

use the FAT32 format (most drives are formatted with

FAT32 from the factory). Be sure to do a full format rather



folders have names longer than 64 characters. It is very





motor4_manual-9.indd 38 9/29/17 08:21