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INTRODUCTION

This instruction manual is for your safety and must be adhered to at all times. Please read and 

ensure that you fully understand the installation and set up procedures as explained. If you are 

unclear on the installation or set up of your FLI UNDERGROUND speakers please contact your 

nearest authorised FLI UNDERGROUND dealer.

Thank you for purchasing these FLI UNDERGROUND coaxial speakers. They 

will provide you with years of trouble free usage providing you follow a few 

simple guidelines.

2

WARNING

DO NOT EXPOSE THIS PRODUCT TO DAMP OR MOISTURE

 - doing so may result in 

fi

 re, 

shock or damage to the product.

BEFORE WIRING DISCONNECT THE CABLE FROM THE POSITIVE BATTERY TERMINAL

 

- failure to do so may result in electric shock or injury.

ENSURE GOOD AND CORRECT CONNECTIONS

 - failure to make the correct connections 

may result in 

fi

 re or damage to the product.

KEEP THE VOLUME AT A LEVEL SO YOU CAN STILL HEAR OUTSIDE NOISE

 - failure to do 

this may result in an accident. FLI UNDERGROUND equipment is capable of producing sound 
levels that can permanently damage your hearing. FLI UNDERGROUND recommends caution 
when listening at high volume. For safe and enjoyable listening the sound should be comfortable 
and clear without distortion.

CAUTION

• Never connect any speaker lead to the car chassis. This can cause severe damage to your 

speaker / car radio / ampli

fi

 er. 

• Before drilling or cutting any holes, investigate the layout of your vehicle thoroughly.
• Use caution when working near the fuel / hydraulic lines and electrical wiring. 
• Observe the correct polarity when wiring, improper phasing may cause a loss of bass 

response.

• Ensure that no moving parts catch on the speaker or grill (e.g. window or door handles, or 

window glass inside the door)

INSTALLATION

• The quality of the installation will affect the system performance and reliability.
• Contact your nearest authorised FLI dealer if you are unsure about the installation of this 

product.

• Please mount this unit away from any potential hazards.
• Minimising the length of wires will provide higher audio output from the system.
• The speaker should be securely fastened to the mounting position using the screws 

provided.

• Pre drill your mounting holes using a drill and position with the template provided.
• Be sure to investigate your mounting area thoroughly for electrical wires, brake or fuel lines or 

fuel tank to prevent causing any damage.

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ONNECTIONS

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