See all parts that fit your 2003 Focus
400W RMS KXA Class-D 4-Channel 2-Ohm Stable Amplifier with Remote Level Control
• 50 Watts RMS x 4 @ 4 ohm
•100 Watts RMS x 4 @ 2 ohm
• 800 Watts RMS x 2 @ 4 Ohm, Bridged
• CEA-2006 Compliant
• Aluminum Heatsink
• Dimensions: 8-5/16" W x 11-3/16" L x 2-1/8" H
Install New Speakers in select 1993-2017 vehicles from Ford, Mazda, Mercury
$9.99
List price $14.99
Connect your factory antenna to a new aftermarket radio for select 1973-2025 vehicles from Audi, Mercedes-Benz, Volkswagen
$7.99
List price $11.99
Install a new car stereo in select 1986-2004 vehicles from Ford, Mercury, Mazda
$5.99
List price $6.99
Install a new Double-DIN car stereo in select 1999-2004 Focus and Cougar
$22.99
List price $25.99
Install a new Single-DIN car stereo in select 1999-2004 Focus and Cougar
$26.99
List price $29.99
7" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay and Android Auto (SiriusXM Ready)
$329.95
List price $349.95
Single DIN Digital Media Receiver with Bluetooth (SiriusXM Ready)
$149.95
List price $180.00
Single DIN CD Receiver with Bluetooth, HD Radio and SiriusXM Ready
$249.99
List price $280.00
• 50 Watts RMS x 4 @ 4 ohm
•100 Watts RMS x 4 @ 2 ohm
• 800 Watts RMS x 2 @ 4 Ohm, Bridged
• CEA-2006 Compliant
• Aluminum Heatsink
• Dimensions: 8-5/16" W x 11-3/16" L x 2-1/8" H
Check out the KXA400.4 Owner's Manual
2 Infinity REF507CF (INFSPKRF507CFUS) w/ Adapter Plates
390W Peak (130W RMS) 5.25" Reference Series 2-way 3-ohm Component Speaker System with Speaker Adapter Plates
$477.88
List price $543.88
6.75" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto with Backup Camera
$329.99
600W Peak (200W RMS) 6.5” CS Series 2 Way Coaxial 4-ohm Speakers
$79.96
List price $119.99
6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto, and SiriusXM Ready
$349.99
List price $420.00
7" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay and Android Auto (SiriusXM Ready)
$329.95
List price $349.95
6.8" Double DIN Digital Multimedia Receiver with Bluetooth, Wireless Apple CarPlay, and Android Auto (SiriusXM Ready)
$599.99
List price $750.00
480W Peak (120W RMS) 6.5” DS Series 2-way 4-ohm Coaxial Car Speakers (DSC6504)
$84.99
List price $94.99
600W Peak (200W RMS) 6.5" DB+ Series 2 Way Coaxial 4-ohm Car, Marine and Powersports Speakers
$109.00
List price $119.99
360W Peak (120W RMS) 6.5" Club Series 2-way Coaxial 3-ohm Speakers
$99.95
List price $139.95
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• Total RMS Power: 500 watts
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Manufacturer:
Model Number:
44KXA4004
Weight:
4.00lbs
Internal SKU:
44kxa4004
Internal Product ID:
127805
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Complete 4-Channel CCA 4 Gauge Amp Kit with RCA Cables and Speaker Wire
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4 Gauge Premium (CCA) Copper Clad Aluminum Amplifier Power Wiring Kit with Speaker Wire
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4 Gauge 100% (OFC) Oxygen Free Copper Amplifier Power Wiring Kit with Speaker Wire
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NVX XIX45 X-Series RCA Interconnect Cable
16.4 ft. of 4-Channel X-Series RCA Cable with Dual Twisted Pair Hyper-Flex Technology
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75 ft. of True 16 Gauge 100% Copper EnvyFlex Speaker Cable/Wire
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80 Amp Smart Relay Isolator (XSBI80)
Smart isolator - Monitors and auto-charging feature!
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(10)
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200 Amp Relay Isolator (BIR200)
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500 Amp Smart Relay Isolator (XSBI500)
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(8)
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500 Amp Relay Isolator (BIR500)
Does not create a voltage drop to the second battery like conventional isolators
(36)
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True 1.0 Farad 20V Capacitor with Digital Read-out, Built-in Distribution Block
(33)
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(80)
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Belva Nine Function Digital Multimeter
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(7)
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Universal Positive/Negative 1/0 or 4 Gauge Battery Terminal
Make installation a breeze with the XBTU
(19)
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World's Smallest AFS / Mini ANL Fuse Holder
Accepts 4 gauge or 8-gauge wire
(15)
$9.99
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4/8 Gauge Mini ANL (MANL, AFS) Fuse Holder
4/8 Gauge Mini ANL (MANL, AFS) Fuse Holder
(11)
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High Quality Element Resistant AGU Fuse Holder
Belva BAGUH2 AGU Fuse Holder
(2)
$4.99
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Modular Linkable ANL Fuse Block
Modular Linkable ANL Fuse Block
(4)
$14.99
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ANL/Mini-ANL Fuse Holder with 1/0 or 4 Gauge Input and Output
No-fail termination and current flow, it helps keep your system protected and running smoothly
(50)
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4/8 Gauge Mini-ANL/MANL/AFS Fuse Holder
4/8 Gauge Mini-ANL/MANL/AFS Fuse Holder
(6)
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4 Pack of 80 Amp Nickel-Plated MANL Fuse
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(19)
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4 Pack of 100 Amp Nickel-Plated MANL Fuse
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(17)
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4 Pack of 150 Amp Nickel-Plated MANL Fuse
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(23)
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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:
Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.
