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IMPORT ANT: Installation of automotive stereo 
components can require extensive experience 
with a variety of mechanical and electrical 
procedures. Although these instructions 
explain how to install Reference Series speakers 
in a general sense, they do not show the exact 
installation methods for your particular vehicle. 
If you do not feel you have the experience, do not 
attempt the installation yourself, but instead ask 
your authorized Infinity car-audio dealer about 
professional installation options.
WARNING: Playing loud music in an automobile 
can permanently damage your hearing, as well as 
hinder your ability to hear traffic. The maximum 
volume levels achievable with Infinity speakers, 
combined with high power amplification, may 
exceed safe levels for extended listening. We 
recommend using low volume levels when 
driving. Infinity accepts no liability for hearing 
loss, bodily injury, or property damage as a result 
of use or misuse of this product.
INSTALLATION WARNINGS AND TIPS
• Always wear protective eyewear when using 
any tools.
• Turn off all audio components and other 
electrical devices before you start. Disconnect 
the (–) negative lead from your vehicle’s battery.
• Keep speakers in their package until final 
installation. When moving a speaker, always 
rest it with the cone or dome facing up. Never 
use force to install any speaker.
• Check clearances on both sides of a planned 
mounting surface before drilling any holes or 
installing any screws. Remember that the 
screws can extend behind the surface.
• At the installation sites, locate and make a 
note of all fuel lines, hydraulic brake lines, 
vacuum lines and electrical wiring. Use 
extreme caution when cutting or drilling in 
and around these areas.
CAUTION: In some cars, fuel tanks may be 
located directly beneath the rear deck. Check 
for adequate speaker basket clearance before 
considering this location!
• Before drilling or cutting holes, use a utility 
knife to remove unwanted fabric or vinyl, 
to keep material from snagging in a drill bit 
or saw.
• For door installations, check the clearance 
with the windows throughout the range of the 
window’s travel, and verify that a mounted 
speaker will not interfere with the window 
crank or power window mechanism. 
• If mounting speakers elsewhere, check for 
clearance around rear deck torsion bars, glove 
box or other structural elements.
• Do not mount speakers where they will get wet.
INSTALLATION
Figure 1. 
Mounting the 452i, 552i, 6952i, 6953i, 3052cf and 
5752cf.
NOTE:The 3052cf and 5752cf speaker s are 
designed to be installed under factory grilles. 
Consequently, no grilles are packaged with these 
models.
NOTE: If you are mounting the 5752cf in a 6" x 8" 
location, use the adapter provided.
MODIFICATIONS
Figure 2. 
Modifying the 452i to be installed in locations 
requiring fewer than 4 mounting “ears”.
NOTE: Bend tab back and forth to detach it from 
the speaker.
ROTATE TWEETER SO IT IS ANGLED 
TOWARD THE LISTENER USING THE 
"UNIPIVOT" FEATURE ON THE 552i, 
652i, 5752cf AND 6952i