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2003 Kia Optima

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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

Speakers & Speaker Installation for 2003 Kia Optima

Find speakers to upgrade your sound and fit in the factory speaker location for your Optima.  After you choose your speakers, we'll help you find speaker adapters, speaker harnesses and other accessories for installation.

All car speakers

Shop All Speaker Locations in the Vehicle

See all speakers that fit, regardless of location.

Lower Front Door

Lower Front Door Speakers

Speakers for your lower front door.

Rear Deck Corner

Rear Deck Corner Speakers

Speakers for your corner rear deck

Upper Front Door Speakers

Upper Front Door Speakers

Speakers for your upper front door.

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Speakers with sound damping,
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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.
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Cerwin-Vega CVP65 with Sound Damping

300W Peak (150W RMS) 6.5" PRO Series Full Range Coaxial Car Speaker + NVX SDSK2 Sound Damping

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Cerwin-Vega CVP65 with Sound Damping

300W Peak (150W RMS) 6.5" PRO Series Full Range Coaxial Car Speaker + NVX SDSK2 Sound Damping

• 300 watts Peak Each, 150 watts RMS Each
• Impedance: 4 ohm
• Sensitivity: 93 dB

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50
List price $72.73
-18% $59.98

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• 300 watts Peak Each, 150 watts RMS Each
• Impedance: 4 ohm
• Sensitivity: 93 dB

Cerwin-Vega XED693 with Sound Damping

600W Peak (70W RMS) 6x9" XED Series 3-Way Coaxial Car Speakers + NVX SDSK2 Sound Damping

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Cerwin-Vega XED693 with Sound Damping

600W Peak (70W RMS) 6x9" XED Series 3-Way Coaxial Car Speakers + NVX SDSK2 Sound Damping

• 350 watts Peak Each, 45 watts RMS Each
• 1" Metallic Balanced Dome Tweeters
• Curvilinear polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 94 dB

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73
List price $84.73
-17% $69.98

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• 350 watts Peak Each, 45 watts RMS Each
• 1" Metallic Balanced Dome Tweeters
• Curvilinear polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 94 dB

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Crunch CS693 with Sound Damping

800W Peak (400W RMS) 6x9" CS Series 3-Way Coaxial Car Speakers + NVX SDSK2 Sound Damping

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Crunch CS693 with Sound Damping

800W Peak (400W RMS) 6x9" CS Series 3-Way Coaxial Car Speakers + NVX SDSK2 Sound Damping

• 400 watts Peak Each, 200 watts RMS Each
• 1" Neo-Mylar Soft Dome Tweeters
• Cellulose cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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73
List price $68.73
-29% $48.98

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• 400 watts Peak Each, 200 watts RMS Each
• 1" Neo-Mylar Soft Dome Tweeters
• Cellulose cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

Crunch CS65C with Sound Damping

600W Peak (300W RMS) 6.5" CS Series 2-Way Component Speaker System + NVX SDSK2 Sound Damping

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Crunch CS65C with Sound Damping

600W Peak (300W RMS) 6.5" CS Series 2-Way Component Speaker System + NVX SDSK2 Sound Damping

• 300 watts Peak Each, 150 watts RMS Each
• 1" Neo-Mylar Soft Dome Tweeters
• Cellulose cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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76
List price $68.73
-27% $49.98

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• 300 watts Peak Each, 150 watts RMS Each
• 1" Neo-Mylar Soft Dome Tweeters
• Cellulose cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

Diamond Audio DES69C with Sound Damping

300W Peak (150W RMS) 6x9" Elite Series 2-Way Component Speaker System + NVX SDSK2 Sound Damping

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Diamond Audio DES69C with Sound Damping

300W Peak (150W RMS) 6x9" Elite Series 2-Way Component Speaker System + NVX SDSK2 Sound Damping

• 150 watts Peak Each, 75 watts RMS Each
• 1" Aluminum Dome Tweeters
• Composite foam core carbon fiber cone material
• Impedance: 4 ohm
• Sensitivity: 84 dB

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List price $598.73
-27% $434.98

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• 150 watts Peak Each, 75 watts RMS Each
• 1" Aluminum Dome Tweeters
• Composite foam core carbon fiber cone material
• Impedance: 4 ohm
• Sensitivity: 84 dB

Hertz SX 165 NEO with Sound Damping

400W Peak (200W RMS) 6.5" Show Series 2-way Car Speakers for SPL Competition + NVX SDSK2 Sound Damping

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Hertz SX 165 NEO with Sound Damping

400W Peak (200W RMS) 6.5" Show Series 2-way Car Speakers for SPL Competition + NVX SDSK2 Sound Damping

• 200 watts Max Each, 100 watts RMS Each
• 1.1 PEI (Polyetherimide) Dome Tweeters
• Water repellent pressed paper cone material
• Impedance: 4 ohm
• Sensitivity: 96.5 dB
• Mounting Depth: 2-1/4"

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List price $498.74
-7% $464.98

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• 200 watts Max Each, 100 watts RMS Each
• 1.1 PEI (Polyetherimide) Dome Tweeters
• Water repellent pressed paper cone material
• Impedance: 4 ohm
• Sensitivity: 96.5 dB
• Mounting Depth: 2-1/4"

Hertz SX 690 NEO with Sound Damping

520W Peak (260W RMS) 6X9" SPL Show Series 3-Way Car Speakers + NVX SDSK2 Sound Damping

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Hertz SX 690 NEO with Sound Damping

520W Peak (260W RMS) 6X9" SPL Show Series 3-Way Car Speakers + NVX SDSK2 Sound Damping

• 260 watts Peak Each, 130 watts RMS Each
• 1" PEI (Polyetherimide) Dome Tweeters
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 94 dB

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List price $668.74
-16% $564.98

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• 260 watts Peak Each, 130 watts RMS Each
• 1" PEI (Polyetherimide) Dome Tweeters
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 94 dB

Hertz CPK 165 with Sound Damping

630W Peak (210W RMS) 6.5" Cento Series 2-Way Component Speaker System + NVX SDSK2 Sound Damping

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Hertz CPK 165 with Sound Damping

630W Peak (210W RMS) 6.5" Cento Series 2-Way Component Speaker System + NVX SDSK2 Sound Damping

• 315 watts Peak Each, 105 watts RMS Each
• 1-1/8" Tetolon Dome Tweeters
• Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 92.5 dB

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49
List price $618.74
-17% $514.98

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• 315 watts Peak Each, 105 watts RMS Each
• 1-1/8" Tetolon Dome Tweeters
• Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 92.5 dB

Hertz CPX 690 with Sound Damping

720W Peak (240W RMS) 6x9" Cento Series 3-Way Coaxial Car Speakers + NVX SDSK2 Sound Damping

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Hertz CPX 690 with Sound Damping

720W Peak (240W RMS) 6x9" Cento Series 3-Way Coaxial Car Speakers + NVX SDSK2 Sound Damping

• 360 watts Peak Each, 120 watts RMS Each
• 1-1/4 Tetolon Dome Tweeters
• Pressed paper cone material
• Impedance: 4 ohm
• Sensitivity: 94 dB

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List price $618.74
-17% $514.98

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• 360 watts Peak Each, 120 watts RMS Each
• 1-1/4 Tetolon Dome Tweeters
• Pressed paper cone material
• Impedance: 4 ohm
• Sensitivity: 94 dB

Hertz MPK165.3 with Sound Damping

440W Peak (220W RMS) 6.5" Mille PRO Series 2-Way 4 Ohm Component speaker system + NVX SDSK2 Sound Damping

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Hertz MPK165.3 with Sound Damping

440W Peak (220W RMS) 6.5" Mille PRO Series 2-Way 4 Ohm Component speaker system + NVX SDSK2 Sound Damping

• 110 Watts Max Each, 55 Watts RMS Each
• Pressed-pulp cone with cotton fibers cone material
• Tetolon Tweeter Dome
• 4 Ohm Impedance
• Sensitivity: 92 dB

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List price $723.74
-15% $614.98

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• 110 Watts Max Each, 55 Watts RMS Each
• Pressed-pulp cone with cotton fibers cone material
• Tetolon Tweeter Dome
• 4 Ohm Impedance
• Sensitivity: 92 dB

Hifonics ZS65CXS with Sound Damping

600W Peak (100W RMS) 6.5" Zeus Series 2-Way Coaxial Car Speakers with Sound Damping

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Hifonics ZS65CXS with Sound Damping

600W Peak (100W RMS) 6.5" Zeus Series 2-Way Coaxial Car Speakers with Sound Damping

• 300 watts Peak Each, 50 watts RMS Each
• 1" Neo-Mylar Dome Tweeters
• Alpha-Cellulose cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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66
List price $53.73
-11% $47.98

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• 300 watts Peak Each, 50 watts RMS Each
• 1" Neo-Mylar Dome Tweeters
• Alpha-Cellulose cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

Hifonics ZS653 with Sound Damping

600W Peak (100W RMS) Zeus 6.5" Series 3-Way Coaxial Car Speakers + NVX SDSK2 Sound Damping

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Hifonics ZS653 with Sound Damping

600W Peak (100W RMS) Zeus 6.5" Series 3-Way Coaxial Car Speakers + NVX SDSK2 Sound Damping

• 300 Watts Max Each, 50 Watts RMS Each
• 1" Neo-Mylar Soft Dome Tweeter
• Alpha-Cellulose mid-woofer cone material
• 4 Ohm Impedance
• Sensitivity: 88dB
• CEA-426B compliant speakers

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62
List price $53.73
-7% $49.98

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• 300 Watts Max Each, 50 Watts RMS Each
• 1" Neo-Mylar Soft Dome Tweeter
• Alpha-Cellulose mid-woofer cone material
• 4 Ohm Impedance
• Sensitivity: 88dB
• CEA-426B compliant speakers

MB Quart FKB 116 (FKB116) with Sound Damping

240W Peak (120W RMS) 6.5" Formula Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

FKB116_SDBSK2 big
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MB Quart FKB 116 (FKB116) with Sound Damping

240W Peak (120W RMS) 6.5" Formula Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

• 120 watts Peak Each, 60 watts RMS Each
• 1" Aluminum Dome tweeters
• Lightweight Thermal-formed Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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List price $98.73
-49% $49.98

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• 120 watts Peak Each, 60 watts RMS Each
• 1" Aluminum Dome tweeters
• Lightweight Thermal-formed Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

DS18 PRO-GM6.4 (Sold Individually) with Sound Damping

480W Peak (140W RMS) 6.5" PRO-GM Series 4-ohm Mid-Range Car Loudspeaker + NVX SDBSK2 Premium Sound Damping

PROGM64_SDBSK2 big
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DS18 PRO-GM6.4 (Sold Individually) with Sound Damping

480W Peak (140W RMS) 6.5" PRO-GM Series 4-ohm Mid-Range Car Loudspeaker + NVX SDBSK2 Premium Sound Damping

• 480 watts Peak, 140 watts RMS
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

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List price $52.69
-16% $44.44

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• 480 watts Peak, 140 watts RMS
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

DS18 PRO-X6BM (Sold Individually) with Sound Damping

500W Peak (250W RMS) 6.5” PRO-X Series 8-ohm Mid-range Loudspeaker + NVX SDBSK2 Premium Sound Damping

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DS18 PRO-X6BM (Sold Individually) with Sound Damping

500W Peak (250W RMS) 6.5” PRO-X Series 8-ohm Mid-range Loudspeaker + NVX SDBSK2 Premium Sound Damping

• 500 watts Peak Each, 250 watts RMS Each
• Red Aluminum Bullet tweeters
• Non-Pressed Paper cone material
• Impedance: 8 ohm
• Sensitivity: 94 dB

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List price $71.69
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• 500 watts Peak Each, 250 watts RMS Each
• Red Aluminum Bullet tweeters
• Non-Pressed Paper cone material
• Impedance: 8 ohm
• Sensitivity: 94 dB

Pioneer TS-G1620F with Sound Damping

600W Peak (80W RMS) 6.5" G-Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

TSG1620F_SDBSK2 big
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Pioneer TS-G1620F with Sound Damping

600W Peak (80W RMS) 6.5" G-Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

• 300 watts Peak Each, 40 watts RMS Each
• 1-3/16" PET Balanced Dome tweeters
• IMPP (Injection Molded Polypropylene) with Mica cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

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List price $83.74
-25% $62.99

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• 300 watts Peak Each, 40 watts RMS Each
• 1-3/16" PET Balanced Dome tweeters
• IMPP (Injection Molded Polypropylene) with Mica cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

Rockford Fosgate TMS69 with Sound Damping

200W Peak (100W RMS) 6”x9” Full-Range Speakers for Harley-Davidson Motorcycle Bag Lids + NVX SDBSK2 Premium Sound Damping

TMS69_SDBSK2 big
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Rockford Fosgate TMS69 with Sound Damping

200W Peak (100W RMS) 6”x9” Full-Range Speakers for Harley-Davidson Motorcycle Bag Lids + NVX SDBSK2 Premium Sound Damping

• 200 watts Peak Each, 100 watts RMS Each
• 1" Film Dome Tweeters
• Carbon Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

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List price $458.73
$454.98

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• 200 watts Peak Each, 100 watts RMS Each
• 1" Film Dome Tweeters
• Carbon Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

Diamond Audio MS69NEO with Sound Damping

1400W Peak (700W RMS) 6X9" MS Neo Series Midrange Coaxial Speakers + NVX SDSK2 Sound Damping

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Diamond Audio MS69NEO with Sound Damping

1400W Peak (700W RMS) 6X9" MS Neo Series Midrange Coaxial Speakers + NVX SDSK2 Sound Damping

• 700 watts Max Each, 350 watts RMS Each
• Neodymium Tweeters
• Waterproof Black DUPONT™ Kevlar Cone
• Impedance: 4 ohm
• Sensitivity: 96 dB
• Mounting Depth: 3.091"

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List price $848.73
$844.98

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• 700 watts Max Each, 350 watts RMS Each
• Neodymium Tweeters
• Waterproof Black DUPONT™ Kevlar Cone
• Impedance: 4 ohm
• Sensitivity: 96 dB
• Mounting Depth: 3.091"

Diamond Audio HX653DI with Sound Damping

300W Peak (150W RMS) 6.5" HEX Diamante Italia Series 3-Way Component Speaker System + NVX SDSK2 Sound Damping

HX653DI_SDSK2 big
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Diamond Audio HX653DI with Sound Damping

300W Peak (150W RMS) 6.5" HEX Diamante Italia Series 3-Way Component Speaker System + NVX SDSK2 Sound Damping

• 150 watts Peak Each, 75 watts RMS Each
• 1" Silk Dome Tweeters
• Composite Bronze Fiberglass cone material
• Impedance: 3.3 ohm
• Sensitivity: 88.3 dB

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$1,334.98

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• 150 watts Peak Each, 75 watts RMS Each
• 1" Silk Dome Tweeters
• Composite Bronze Fiberglass cone material
• Impedance: 3.3 ohm
• Sensitivity: 88.3 dB

Hertz MPK163.3 with Sound Damping

300W Peak (150W RMS) 6.5" Mille PRO Series 3-Way 4 Ohm Component speaker system + NVX SDSK2 Sound Damping

MPK1633_SDSK2 big
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Hertz MPK163.3 with Sound Damping

300W Peak (150W RMS) 6.5" Mille PRO Series 3-Way 4 Ohm Component speaker system + NVX SDSK2 Sound Damping

• 150 Watts Max Each, 75 Watts RMS Each
• Pressed-pulp cone with cotton fibers cone material
• Tetolon Tweeter Dome
• 4 Ohm Impedance
• Sensitivity: 92 dB

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• 150 Watts Max Each, 75 Watts RMS Each
• Pressed-pulp cone with cotton fibers cone material
• Tetolon Tweeter Dome
• 4 Ohm Impedance
• Sensitivity: 92 dB

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    • Vehicle produced after 2005: Inside driver's side door
    • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
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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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