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2003 BMW M3

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The best Under Cargo Floor Panel Speakers for 2003 M3

Overview Upgrade your Stereo Upgrade your Speakers Add a Subwoofer Add an Amplifier Digital Sound Processors Audio Installation & Accessories Add a Backup Camera Dads & Grads Sale

Under Cargo Floor Panel for 2003 BMW M3

Shop and compare by low prices and top features on Under Cargo Floor Panel Speakers that fit your BMW M3. After you add to cart, we'll also make sure you get an affordable car speakers install easily with speaker adapters, speaker harnesses and other accessories like sound damping and panel tools to make installation a breeze.

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Speaker Size
Refers to the size of the speaker measured in inches. Every vehicle has standard application sizes. Please use our vehicle fitment guide for your vehicle's specific speaker sizes if you do not know them.
Design
The number of individual drivers in a car speaker. Speakers with 2 drivers are known as a 2-way, and 3 drivers are known as a 3-way. Component systems are often referred to as "separates" because the tweeter is not attached to the midwoofer (main speaker driver) and mounts separately in a location such as a door post. Component systems typically come with an external crossover so you can easily adjust the high and low frequencies sent to both the midwoofer and the tweeter. Center channel speakers are great for those looking to have surround sound in their vehicle.
RMS Power Handling
The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
Peak Power Handling
Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.
Sensitivity
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
  Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
Impedance (Per Voice Coil)
The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.
Shallow Mount Installation
This means that the subwoofer/speaker is designed to be installed in areas that do not have a lot of space. Shallow mount subwoofers are typically found under a seat or behind the seat in some trucks.

Shallow mount speakers will typically have a mounting depth of 2" or less, while shallow mount subwoofers will typically have a mounting depth of 3" or less.
Tweeter Design
Designs such as cone, dome, semi-dome, balanced dome, and whizzer are most popular. Cone tweeters are simple, efficient and typically are the most reasonably priced. Dome tweeters are used in most home speakers, and provide a smoother and more accurate sound. Semi-dome design is one with a dome placed inside a cone. A Balanced dome driver is a semi-dome with equal reproduction area given the cone and dome portions of the driver. A whizzer tweeter is a separate tweeter cone driven by the voice coil of the woofer.
Series
Many brands group their products into series or lines of products to help customers know the level of quality (good, better, best for example). You can filter by series and the brand using our guided browsing.
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JBL Stadium 962C (JBLSPKSD962CAM)

870W Peak (290W RMS) 6x9" Stadium Series 2-Way Component 3-ohm Speaker System

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JBL Stadium 962C (JBLSPKSD962CAM)

870W Peak (290W RMS) 6x9" Stadium Series 2-Way Component 3-ohm Speaker System

• 435 watts Peak Each, 145 watts RMS Each
• 3/4" Aluminum Edge Driven Dome Tweeters
• Glass Fiber cone material
• Impedance: 3 ohm
• Sensitivity: 94 dB

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List price $579.95
-9% $529.95 /set

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MTX Audio THUNDER65

120W RMS 6.5" Thunder Series 2 Way Coaxial 4-ohm Speakers

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MTX Audio THUNDER65

120W RMS 6.5" Thunder Series 2 Way Coaxial 4-ohm Speakers

• 60 watts RMS Each
• 1" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

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List price $169.99
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-44% $95.96 /pair

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Pioneer TS-A653CH

740W Peak (170W RMS) 6.5" A-Series 2 Way Component 4-ohm Speakers

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Pioneer TS-A653CH

740W Peak (170W RMS) 6.5" A-Series 2 Way Component 4-ohm Speakers

• 370 watts Peak Each, 85 watts RMS Each
• 3/4" PEI (Polyetherimide) Hard Dome tweeters
• Aramid fiber reinforced Injection Molded Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 91 dB

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List price $180.00
-17% $149.99 /set

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Alpine EL-E65C-G

320W Peak (80W RMS) 6.5" EL Series 2-Way Component 4-ohm Car Speakers

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Alpine EL-E65C-G

320W Peak (80W RMS) 6.5" EL Series 2-Way Component 4-ohm Car Speakers

• 160 watts Peak Each, 40 watts RMS Each
• 3/4" Teteron Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

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List price $110.00
-18% $89.95 /set

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MTX Audio THUNDER61

180W RMS 6.5" Thunder Series 2 Way Component 4-ohm Speaker System

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MTX Audio THUNDER61

180W RMS 6.5" Thunder Series 2 Way Component 4-ohm Speaker System

• 90 watts RMS Each
• 1-3/8" Silk Soft Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

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List price $239.95
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-17% $199.97 /set

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Kenwood eXcelon KFC-X695

600W Peak (260W RMS) 6x9" eXcelon Series 2 Way Coaxial 3-ohm Car Speakers

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Kenwood eXcelon KFC-X695

600W Peak (260W RMS) 6x9" eXcelon Series 2 Way Coaxial 3-ohm Car Speakers

• 300 watts Peak Each, 130 watts RMS Each
• 1-3/16" Soft Dome Tweeters
• Injection Molded Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 84 dB

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List price $240.00
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-32% $164.00 /pair

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Infinity Primus PR9610CS

600W Peak (200W RMS) 6x9" Primus Series 2-Way Component 2.7-ohm Speaker System

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Infinity Primus PR9610CS

600W Peak (200W RMS) 6x9" Primus Series 2-Way Component 2.7-ohm Speaker System

• 300 watts Peak Each, 100 watts RMS Each
• 1" Textile Edge Driven Dome tweeters
• Polypropylene cone material
• Impedance: 2.7 ohm
• Sensitivity: 89 dB

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List price $209.95
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Alpine R2-S69

600W Peak (200W RMS) 6x9" R-Series 2-way 4-ohm Coaxial Car Speakers

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Alpine R2-S69

600W Peak (200W RMS) 6x9" R-Series 2-way 4-ohm Coaxial Car Speakers

• 300 watts Peak Each, 100 watts RMS Each
• 1" Magnesium Hard Dome tweeters
• Glass Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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List price $480.00
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-33% $319.95 /pair

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NVX VPRO69BM (Sold Individually)

500W Peak (250W RMS) 6x9" V-Series Pro Midrange Loudspeaker

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NVX VPRO69BM (Sold Individually)

500W Peak (250W RMS) 6x9" V-Series Pro Midrange Loudspeaker

• 500 watts Peak Each, 250 watts RMS Each
• Competition Grade Paper cone material
• Impedance: 4 ohm
• Sensitivity: 96 dB

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List price $89.99
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JBL STAGE2 965M

1120W Peak (140W RMS) 6x9" Stage2 Series 3 Way Coaxial 4-ohm Speakers

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JBL STAGE2 965M

1120W Peak (140W RMS) 6x9" Stage2 Series 3 Way Coaxial 4-ohm Speakers

• 560 watts Peak Each, 70 watts RMS Each
• Polypropylene Plus One cone material
• PEI (Polyetherimide) Edge Driven Dome tweeters
• Impedance: 4 ohm
• Sensitivity: 92 dB

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List price $99.95
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Cerwin-Vega V692

840W Peak (280W RMS) 6x9" Vega Series 2025 Edition 2-Way Coaxial 2-ohm Speakers

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Cerwin-Vega V692

840W Peak (280W RMS) 6x9" Vega Series 2025 Edition 2-Way Coaxial 2-ohm Speakers

• 420 watts Peak Each, 140 watts RMS Each
• 1" Silk Balanced Dome Tweeters
• Carbon Fiber Polypropylene cone material
• Impedance: 2 ohm
• Sensitivity: 89 dB

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$179.99 /pair

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Rockford Fosgate Punch P1V2-65

300W Peak (150W RMS) 6.5" Punch P1 Series 3 Way Coaxial 4-ohm Speakers

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Rockford Fosgate Punch P1V2-65

300W Peak (150W RMS) 6.5" Punch P1 Series 3 Way Coaxial 4-ohm Speakers

• 150 watts Peak Each, 75 watts RMS Each
• 3/4" Tetolon Inverted Dome tweeters
• 3/8" Polypropylene-Piezo super tweeters
• Mica reinforced Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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List price $239.99
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DS18 PRO-X694BM (Sold individually)

400W Peak (200W RMS) 6x9” PRO-X Series 4-ohm Midrange Bullet Loudspeaker

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DS18 PRO-X694BM (Sold individually)

400W Peak (200W RMS) 6x9” PRO-X Series 4-ohm Midrange Bullet Loudspeaker

• 400 watts Peak, 200 watts RMS
• Aluminum Bullet tweeters
• Non-Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 98 dB

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$83.95

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NVX VPRO65HS (Sold Individually)

350W Peak (175W RMS) 6.5" V-Series Pro 2 Way Coaxial Shallow Loudspeaker

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NVX VPRO65HS (Sold Individually)

350W Peak (175W RMS) 6.5" V-Series Pro 2 Way Coaxial Shallow Loudspeaker

• 350 watts Peak Each, 175 watts RMS Each
• 1" Aluminum Horn tweeter
• Competition Grade Paper cone material
• Impedance: 4 ohm
• Sensitivity: 97 dB

3+ offers available
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List price $95.99
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JBL STAGE1 962M

1120W Peak (140W RMS) 6x9" Stage1 Series 3 Way Coaxial 4-ohm Speakers

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JBL STAGE1 962M

1120W Peak (140W RMS) 6x9" Stage1 Series 3 Way Coaxial 4-ohm Speakers

• 70 watts Peak Each, 35 watts RMS Each
• Polypropylene Plus One cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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List price $99.95
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Hertz CX 690

600W Peak (200W RMS) 6x9" Cento Series 3-Way Coaxial 4-ohm Car Speakers

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Hertz CX 690

600W Peak (200W RMS) 6x9" Cento Series 3-Way Coaxial 4-ohm Car Speakers

• 300 watts Peak Each, 100 watts RMS Each
• 1.58" PEI (Polyetherimide) Dome tweeter
• 0.8" PEI (Polyetherimide) Dome super tweeter
• Semi-Pressed paper with Mica cone material
• Impedance: 4 ohm
• Sensitivity: 93.5 dB

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List price $395.00
-11% $349.99 /pair

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JBL STAGE3 GEN2 68F (STAGE368F)

1120W Peak (140W RMS) 6.5" Stage3 Gen2 Series 2-Way Coaxial 4-ohm Car Speakers

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JBL STAGE3 GEN2 68F (STAGE368F)

1120W Peak (140W RMS) 6.5" Stage3 Gen2 Series 2-Way Coaxial 4-ohm Car Speakers

• 560 watts Peak Each, 70 watts RMS Each
• PEI (Polyetherimide) Balanced Dome Tweeters
• Plus One Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 91 dB

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List price $99.95
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Pioneer TS-D69F

660W Peak (220W RMS) 6x9” D Series 2 Way Coaxial 4-ohm Speakers

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Pioneer TS-D69F

660W Peak (220W RMS) 6x9” D Series 2 Way Coaxial 4-ohm Speakers

• 330 watts Peak Each, 110 watts RMS Each
• 1" Polyester Fiber Soft Dome tweeters
• Aramid fiber reinforced Injection Molded Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

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List price $240.00
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AudioControl A65CS2

200W RMS 6.5" Altitude Series 4-ohm 2-Way Component Speaker System

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AudioControl A65CS2

200W RMS 6.5" Altitude Series 4-ohm 2-Way Component Speaker System

• 100 watts RMS Each
• 1-11/16" Silk Dome Tweeters
• Precision-Molded Glass Fiber cone
• Impedance: 4 ohm
• Sensitivity: 86.5 dB

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List price $179.00
-11% $159.00 /set

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Cerwin-Vega H65C

720W Peak (240W RMS) 6.5" HED Series 2 Way Component 4-ohm Speaker System

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Cerwin-Vega H65C

720W Peak (240W RMS) 6.5" HED Series 2 Way Component 4-ohm Speaker System

• 360 watts Peak Each, 120 watts RMS Each
• 1" PEI (Polyetherimide) Balanced Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

1+ offers available
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$189.99 /set

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    FAQ for Under Cargo Floor Panel Speakers in 2003 M3

    Q: Can I upgrade or change the Under Cargo Floor Panel Speakers in 2003 BMW M3?

    A: Yes this page includes all the best Under Cargo Floor Panel Speakers that work in your M3.

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    Shop your 2003 M3
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    Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

    • You see only parts engineered for your exact vehicle
    • You avoid incompatible radios, speakers, or wiring
    • Installation is smoother, faster, and frustration-free
    • You get the correct accessories the first time

    Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.

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