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SoundAlert™ - 100W Siren Amplifier with PTT Microphone 

IMPORTANT: READ CAREFULLY BEFORE ASSEMBLY AND USE.

Installer of this product must have a good understanding of automotive electronics, 
systems, and procedures. 
In the case that holes must be drilled in order to properly mount the product, the installer 
must examine both sides of the mounting surface before drilling begins. It is the 
installer's responsibility to be sure that no vehicle components or vital parts could be 
damaged by the drilling process. De-burr any holes in order to remove metal shards and 
remnants. Use grommets in all wire passage holes. 
If this manual states that this product may be mounted with suction cups, magnets, 
tape, or Velcro®, clean the mounting surface and dry thoroughly prior to applying any 
adhesives for maximum adhesion.

Do not attempt to activate or operate this product under hazardous driving 
situations. 
Deployment area of the vehicle air bags must be cleared. Do not install this 
product or route any electrical wires near the air bags deployment areas. Refer to 
your vehicle owner's manual for the air bag deployment area. Products or wires 
mounted in the air bag deployment area will damage, reduce the effectiveness of 
the air bag, or even act as a projectile which may cause serious injury or death. The 
user/installer of this product assumes full responsibility in determining the proper 
mounting location while prioritizing the safety of all passengers in the vehicle.

DANGER!

Sirens are designed to produce extremely loud emergency warning tones! 
Exposure to the tones produced without proper and adequate hearing protec-
tions, could lead to ear damage and/or hearing loss! The Occupational Safety & 
Health Administration (www.osha.gov) provides information necessary to 
determine safe exposure times in Occupational Noise Exposure Section 1910.95. 
The operators of the siren and any one in the immediate vicinity of the siren 
should be required to wear an approved hearing protection device until one has 
determined the safe exposure times for your specific application. FAILURE TO 

FOLLOW THIS RECOMMENDATION COULD CAUSE HEARING LOSS! 

Front Panel:

Contents:

True Mods © 2012-2021 All Rights Reserved 

CAUTION

Loud Siren noise could
cause damage to
unprotected ears.

Refer to OSHA Section 1910.95 prior 

to putting siren into service!

Siren with PTT Mic.

1

Bail Strap Bracket

1

Wiring Bundle

1

Wiring for Horn/Radio

1

Microphone Clip

Mounting Accessories

Fuse(s)

1

1

1

Functions:

Manual Horn/Siren

This switch has two positions.  Down – Siren & Up – Horn.  The siren and 

horn warning tone could be activated manually by engaging the switch 

to the positions. Horn function can also be activated with the vehicle 

horn relay by connecting the horn/radio wire of the siren unit to the 

horn relay of the automobile. (see wiring diagram)

PTT Mic

Push to talk microphone which overrides any activated warning tone 

when in use.

Rotary Switch

The rotary knob controls siren functions.  There are 5 positions that may 

be selected. (see switch functions below for detail)

Speaker/Mic Volume

The volume knob controls the volume of siren and public address 

function.  Rotating the knob clockwise will increase the volume.  Rotat-

ing the knob counter-clockwise will decrease the volume.  Rotating the 

knob to minimal volume will disable all siren functions.

Aux Switch 1 & 2

The auxiliary switches are meant to be used to power other equipment 

on the vehicle.  Each auxiliary switch is fused with a 20 amp AGC fuse.

-

-

-

-

-

Manual

Horn/Siren

PTT Mic.

Rotary Switch

AUX

Switch 1

AUX

Switch 2

Speaker/Mic

Volume

CTRL1

VOLUME

MAX.

OFF

SIREN

HORN

WAIL

YELP

RADIO

STAND-BY

HI-LO

HI-LO2

CTRL2

www.truemods.com

US Toll Free: 1-855-533-6654

International: 1-909-212-0993

Fax: (909) 575-6722

E-mail: [email protected]

Manual ID: PIM-00000067-V002

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