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MPA-30A

MPA-30A

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MPA-30

COMPONENTS AND INSTALLATION

Switchbox (1)

Attach it to the left handle 

bar using the mirror 

screws to fasten it.

Make sure to place it 

within the driver’s reach.

MPA-30

Louds Electronic

Module (1)

Install it onto the slide bars 

using either clamps 

and/or screws (not 

included), or welding it.

SIREN

LIGHTS

M.WAIL

HORN

Front lights (2)

(optional)

Fasten the lights to the bumper.

Rear light (1)

(optional)

Fasten to the trunk.

CONNECTION DIAGRAM

White

+12V

GND

LIGHTS (optional)

Yellow*

(wire to select

the flash pattern)

4P
4P

4P
4P

4P
4P

MTL-FBT

MTL-FBT

MTL-R

6P

SWITCHBOX

LOUDS

ELECTRONIC MODULE

BATTERY

+12V

+

-

6P

SIREN

LIGHTS

M.WAIL

HORN

Black

Red

FUSE

10A

* The optional lights include 10 flash patterns. To select one, take the yellow wire coming from the harness and 

connect it momentarily to the power source (12V); the pattern will switch every time the cable makes contact with 

the source. Once the flash pattern has been selected, make sure to isolate the yellow wire.

OPERATION OF SIREN SOUNDS

Reproduction of the M.WAIL sound

1.  To turn on, press and hold M.WAIL.
2.  To turn off release the switch; M.WAIL will stay on for as 

long as the switch is pressed.

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MPA-30

Reproduction of the HORN sound

1.  To turn on, press and hold HORN.
2.  To turn off release the switch; HORN will stay on for as long 

as the switch is pressed.

NOTE:

 The activation of HORN overrides other functions. Once HORN is released, the 

equipment returns to the function which was executing when HORN went on.

Reproduction of the SIREN sound

1.  To turn on, pull up SIREN.
2.  To turn off, pull down the switch to its central position.

NOTE:

 If there are lights connected to the system, when SIREN is activated the lights will 

go on automatically.

CHANGING BETWEEN MODES FOR SIREN TONE SELECTION

The equipment offers two modes for changing the SIREN tone (modes are explained 

further ahead). To select the mode of your preference, follow the steps below.

1. Press and hold M.WAIL.

2. While M.WAIL is held down, pull up SIREN.

•  If it beeps once: The equipment is in Mode 1.

•  If it beeps twice: The equipment is in Mode 2.

3. Press  and  release  M.WAIL  to  switch  between 

modes.

4. Once the preferred mode is selected, pull down SIREN to 

its central position.

MODE 1: Setting up the SIREN tone

1. Press and hold HORN.

2. While HORN is held down, pull up SIREN. HORN will stop, 

indicating that you have entered confi guration mode.

3. Release HORN, the current SIREN tone will start.

4. Press  and  release  HORN  to  switch  among  the  available 

SIREN tones (PHASER, WAIL, Hi-Lo & YELP). Once the tone 

is selected, pull down SIREN to its central position.

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