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UNDERGROUND
INSTRUCTION &
INSTALLATION MANUAL
coaxial
speakers
MODEL: FU4, FU5, FU6, FU57, FU69
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speaker lead to the car chassis. This can cause
cutting any holes, investigate the layout of your vehicle
correct polarity when wiring, improper phasing may cause
ontact your nearest authorised FLI dealer if you are unsure about the installation o
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.
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.
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 / amplifi 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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SPEAKER INSTALLATION
Firstly, make sure that the speakers will fi t in your chosen location. This may involve
the removal of the standard vehicle speakers. Please use the mounting depth and hole
cut dimensions as detailed in this manual for guidance.
• If necessary cut any material away to allow the speaker to sit correctly.
• Cut out the mounting hole and pre-drill any other fi xing holes.
• If required, the protective grill can be removed from the gasket and omitted from the speaker
fi tting.
• If the grill is to be fi tted, screw through both gasket and speaker using the screw provided until
the speaker is securely fastened.
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