Garage
Shop

See all parts that fit your 1999 Tracker

4 x Kicker 40CS684

4 x 6x8" 900 Watt 2 Way Car Coaxial Speakers Stereo Audio

Kicker
Shop all Kicker
Product videos
highlight-star-icon

• Peak Power: 225W
• RMS Power: 75W
• 4 ohm Impedance
• Polypropylene Cone
• Ribbed, Polyester Foam Surround
• 1/2" Polyetherimide (PEI) Balanced Dome Tweeter

Learn more about the 2_40cs684

We apologize

This item has been discontinued

NVX - Worth the Envy - Direct to Consumer Car Audio

Loading...
40-GM10 main

Metra 40-GM10

Connect your factory antenna to a new aftermarket radio for select 1958-2023 vehicles from GMC, Chevrolet, Pontiac

54
72-4500 main

Metra 72-4500

Install New Speakers in select 1990-2013 vehicles from GMC, Chevrolet, Buick

20
-43.78%

$8.99

List price $15.99

95-2009 main

Metra 95-2009 Dash Kit

Install a new Double-DIN car stereo in select 1990-2012 vehicles from Chevrolet, GMC, Buick (Black)

26
-42.32%

$14.99

List price $25.99

70-2003 main

Metra 70-2003 Wiring Harness

Install a new car stereo in select 1998-2008 vehicles from Chevrolet, GMC, Kia

33
R165X3 main

Rockford Fosgate Prime R165X3

180W Peak (90W RMS) 6.5" Prime Series 3 Way Coaxial 4-ohm Speakers

206

Boss Elite BV850ACP

6.75" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto with Backup Camera

5

JBL Stage2 634 (STAGE2634)

500W Peak (80W RMS) 6.5" Stage2 Series 3 Way Coaxial 4-ohm Speakers

15
-26.00%

$73.99

List price $99.99

Product Highlights


• Peak Power: 225W
• RMS Power: 75W
• 4 ohm Impedance
• Polypropylene Cone
• Ribbed, Polyester Foam Surround
• 1/2" Polyetherimide (PEI) Balanced Dome Tweeter

Description


Kicker brand icon

Authorized dealer

Kicker CS68 (40CS684)

150W Peak (150W RMS) 6" x 8" 2-Way CS Series Coaxial Car Speakers
Quantity: 2

Kicker Authorized Dealer

General Features:

  • 6" x 8" CS Series 2-Way Car Speakers
  • Power Handling:
    • Peak: 450 watts per pair / 225 watts each
    • RMS: 150 watts per pair / 75 watts each
  • Recommended power range: 15 - 75 watts RMS per channel
  • Polypropylene cone material
  • Durable, Ribbed UV-Treated Polyester Foam speaker surround for precise linear excursion
  • Lightweight 1/2" Polyetherimide (PEI) Balanced Dome tweeter design for superb clariy
  • Neodymium tweeter magnet motor structure
  • EVC (Extended Voice Coil) technology for high thermal handling
  • Shallow mounting design allows fitment into virtually any vehicle
  • Substantial upgrade from factory speakers
  • 4 ohm impedance
  • Frequency response: 45-20,000 Hz
  • Top-mount depth: 2-3/16"
  • Sensitivity: 90dB
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Priced Per Pair


Loading...
DMH-1800NEX main

Pioneer DMH-1800NEX

6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto, and SiriusXM Ready

59
-19.05%

$339.99

List price $420.00

UTE-73BT main

Alpine UTE-73BT

Single DIN Digital Media Receiver with Bluetooth

44
-16.69%

$149.95

List price $180.00

CV15BT main

Cerwin-Vega CV15BT

Single Din Digital Media Receiver with Bluetooth

3
Limited time!
DMH-W3050NEX main

Pioneer DMH-W3050NEX

6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Wireless Apple CarPlay and Android Auto, and Built-in Alexa (Sirius XM Ready)

1
-24.20%

$469.99

List price $620.00

AVH-3500NEX main

Pioneer AVH-3500NEX

7" Single DIN Flip-Out Touchscreen CD/DVD Receiver with Bluetooth, Apple CarPlay and Android Auto (SiriusXM Ready)

9
-10.75%

$829.99

List price $930.00

MVH-S322BT main

Pioneer MVH-S322BT

Single DIN Digital Media Receiver with Bluetooth and Amazon Alexa

7
-13.34%

$129.99

List price $150.00

Limited time!
DMX709S main

Kenwood eXcelon DMX709S

6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto (Sirius XM Ready)

39
-33.50%

$399.00

List price $600.00

Limited time!
iLX-W670-M main

Alpine iLX-W670-M

6.75" Double DIN Touchscreen Digital Multimedia Receiver with iDataLink Maestro Support, Bluetooth, Apple CarPlay and Android Auto (SiriusXM Ready)

126
-30.01%

$349.95

List price $500.00

KMM-X705 main

Kenwood eXcelon KMM-X705

Single DIN Digital Media Receiver with Bluetooth, Built-in Alexa (Sirius XM Ready)

6
-20.40%

$199.00

List price $250.00

Limited time!
XAV-AX8500 main

Sony XAV-AX8500

10.1" Single DIN Floating Touchscreen Digital Multimedia Receiver with Bluetooth, Wireless Apple CarPlay, and Wired Android Auto (SiriusXM Ready)

2
-20.20%

$798.00

List price $999.99


Best selling similar products

46CSC654 small

Kicker CSC65 (46CSC654)

• 300 watts Peak Each, 100 watts RMS Each
• 1/2" PEI (Polyetherimide) Balanced Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

(254)

$79.96

List price $119.99

Club 622 small

JBL Club 622

• 180 watts Peak Each, 60 watts RMS Each
• Silk Edge Driven Dome tweeters with 0dB or -3dB adjustable output levels
• UV-Resistant Polypropylene cone material with Plus One woofer cone architecture
• Impedance: 3 ohm
• Sensitivity: 93 dB

(5)

$99.95

List price $139.95

DB652 small

Polk Audio DB652 (DB 652)

• 300 watts Peak Each, 100 watts RMS Each
• 3/4" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

(214)

$109.00

List price $119.99

Specifications & Details


Speaker Specifications
Series
CS Series
Priced Per
Pair
Speaker Size
6" x 8"
Design
2-way Coaxial
Tweeter Design
Dome
Tweeter Size
1/2"
Tweeter Composition
PEI (Polyetherimide)
Woofer Composition
Polypropylene
Woofer Surround
Polyester Foam
Peak Power Handling
225 watts
RMS Power Handling
75 watts
Sensitivity
90 dB
Frequency Response
45 - 20000 Hz
Impedance (Per Voice Coil)
4 ohm
Shallow Mount Installation
No
Top-Mount Depth (Mounting Depth)
2-3/16"
Bottom-Mount Depth
2-9/16"
Cutout Dimensions
5" x 7-3/16 
General specifications
Speaker Grilles
No
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

2-40CS684

Weight:

9.00lbs

Internal SKU:

2_40cs684

Internal Product ID:

89897

Product and How-to Videos


  • How To Test Speaker Polarity | Tips & Demo | Car Audio 101
  • Replace your Car Speakers and Upgrade to Better Sound | Sonic Electronix

Customer Ratings & Reviews


4 x Kicker 40CS684 thumbnail image

5 star
100%
4 star
0%
3 star
0%
2 star
0%
1 star
0%



Durability
5
Value
5
Features
5
Design
5
Usability
5

Customer Reviews

Sort by:

Loading...

Awesome

The following review is for 40CS684, which is a part of the bundle you are viewing.

Very stylish nice comfortable sounds with a very clear sound for a great price.

By Sdavis6970 on May 22, 2015

29 found this helpful


AMAZING

The following review is for 40CS684, which is a part of the bundle you are viewing.

Would recommend to anyone! I have 4 in my 2000 ford f150 and it sounds amazing!

By King Tarlton on June 9, 2015

25 found this helpful


awesome

The following review is for 40CS684, which is a part of the bundle you are viewing.

I ordered my speakers and i was blown away on how fast they where delivered. it was an easy installation in my car, took less then 20 mins. The speakers came with screws and they came with wiring harnesses so that was a plus. They sound great crisp high end and enough low end to make my side mirrors move. I would recommend these speakers for any aftermarket replacements

By frank on March 22, 2017 Checkmark Icon Verified purchase

19 found this helpful


great fit and sound

The following review is for 40CS684, which is a part of the bundle you are viewing.

these dropped right in my doors on a 2007 miata and the sound was great i would buy them again for other cars when needed

By horsefeet on April 8, 2017

18 found this helpful


Kicker Speakers-Excellent Purchase

The following review is for 40CS684, which is a part of the bundle you are viewing.

The speakers were super easy to install. They fit in the place where the factory speakers were located at. The sound is absolutely amazing. Awesome purchase at a great price.

By Roger on April 11, 2017

17 found this helpful




1021T small

Infinity Reference 1021T

1" Silk Dome Tweeters (REF1021T)

(6)

$44.99

List price $99.99

82-5607 small

Metra 82-5607

6" - 6.75" Front Door Speaker Adapters for select 2017-2024 Navigator and Navigator L and Continental

(4)

$20.99

List price $41.99

No picture

Cell Phones

$1000.00

List price $1000.00

CS-HX6848_2-CVM small

JVC CS-HX6848 + Sound Dampening

6" x 8" 4-Way HX Series Coaxial Speakers with Four 18" x 32" Pieces of Sound Dampening Material

$55.95

List price $189.97

2-XS-GS1720 small

4 x Sony XS-GS1720

4 x 6.5" 320W 2 Way Car Coaxial Speakers Stereo Audio

$99.98

List price $399.98

Related Searches


Save up to 10 different vehicles in your garage
Vehicle
Store
Delete

1999 Chevrolet Tracker

2016 MINI Countryman

2024 Audi A5

1997 Saturn SL2

2005 Cadillac STS

1987 Chevrolet V30 Pickup

2001 BMW 325Ci

1982 BMW 633CSi

2000 Lexus GS400

2003 Kia Rio

Add vehicle Clear all vehicles
Where to find vehicle info
Are you sure you want to clear your garage?
This action cannot be undone. Confirm
This page was not designed for products.
If you continue, you will be redirected to a category customized for your vehicle. Continue
Loading...
Identify your vehicle and submodel details
  • Owner's manual
  • Vehicle's insurance card
  • Vehicle registration
  • Vehicle produced after 2005: Inside driver's side door
  • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
Car Info Side Door Icon
Vehicle Registration Icon
Vehicle Insurance Icon

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.