See all parts that fit your 2003 Focus
1000W Max, Chaos Series 4-Channel Amplifier (CH-650)
1000 watts Max, Class A/B 4-Channel Amplifier • 100 watts RMS x 4 chan. @ 4 ohm • 4 ohm Bridged: 500 watts Max x 2 chan. • MOSFET Power Supply • Tri-Mode Capable • Heavy-duty Aluminum Alloy Heatsink • High Pass, Full, and Low Pass Crossover • Soft Turn-on Circuit • Thermal and Speaker Short Protection
Learn more about the ch650
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
1000 watts Max, Class A/B 4-Channel Amplifier • 100 watts RMS x 4 chan. @ 4 ohm • 4 ohm Bridged: 500 watts Max x 2 chan. • MOSFET Power Supply • Tri-Mode Capable • Heavy-duty Aluminum Alloy Heatsink • High Pass, Full, and Low Pass Crossover • Soft Turn-on Circuit • Thermal and Speaker Short Protection
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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Manufacturer:
Model Number:
CH650
Weight:
13.00lbs
Internal SKU:
ch650
Internal Product ID:
6866
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Add a 4-channel amplifier without replacing your factory radio
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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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NVX V-Series RCA Interconnect Cable
19 ft. of 4-Channel RCA cable with dual twisted-pair conductors
(35)
$15.99
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NVX XIV45 4-Channel RCA Audio Interconnect Cable
5 Meters (16.4 ft.) 4-Channel RCA Audio Interconnect Cable with Dual Twisted Pair Hyper-Flex Technology
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$16.99
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All-in-one cable for speaker and amp installation (20 feet)
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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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200 Amp Smart Relay Isolator (XSBI200)
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200 Amp Relay Isolator (BIR200)
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500 Amp Smart Relay Isolator (XSBI500)
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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
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1.0 Farad Capacitor with Digital Red Display for up to 1000W Max
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Belva Nine Function Digital Multimeter
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High Quality Element Resistant AGU Fuse Holder
Belva BAGUH2 AGU Fuse Holder
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Modular Linkable ANL Fuse Block
Modular Linkable ANL Fuse Block
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4 Pack of 80 Amp Nickel-Plated MANL Fuse
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4 Pack of 100 Amp Nickel-Plated MANL Fuse
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4 Pack of 150 Amp Nickel-Plated MANL Fuse
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2 Pack of 100 Amp Nickel-Plated ANL Fuse
ANL 100A Nickel plated for better power transfer
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2 Pack of 200 Amp Nickel-Plated ANL Fuse
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(22)
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2 Pack of 300 Amp Nickel-Plated ANL Fuse
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(19)
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1200W Max 2-Channel ARMOR Series Class A/B Car Amplifier
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2-Channel Universal Punch EQ with Remote & Line Driver
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Amplifier Remote Bass Control for Select 2010 Kicker Amps
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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.
