AudioFormz, Inc.
Manufactures professional fiberglass subwoofer enclosures and amp processing racks.
http://www.audioformz.com/

ADS Technologies Inc.
Manufacturer of car speakers and amplifiers.
http://www.adst.com/

American International
Manufacturer of car stereo installation kits and accessories.
http://www.americaninternational.net/

Audio Enhancers
Automotive speaker cabinet manufacturer.
http://www.audioenhancers.com/

Boston Acoustics
Manufacturing subwoofers, coaxial, and component speakers for the car audio market.
http://www.bostonacoustics.com/

Becker of North America, Inc
Manufactures car stereo head units, speakers, and amplifiers.
http://www.beckerautosound.com/

Bostwick
Manufactures woofers, tweeters, coaxial speakers, amplifiers, electronic crossovers and accessories.
http://www.bostwick.com/

Boss Audio Systems
Manufacturer of car audio amplifiers, crossovers, equalizers, CD/DVD/cassette players, TV monitors, and speaker systems.
http://www.bossaudio.com/

Crossfire Car Audio
Manufactures amplifiers, processors, woofers, and coaxials.
http://www.crossfirecaraudio.com/

Cadence
Manufactures car audio amplifiers, speakers, signal processors, and subwoofers.
http://www.cadencesound.com/

Cerwin Vega
Manufactures car audio speakers, subwoofers, and amplifiers.
http://www.cerwinvega.com/

Celestra
High performance car audio amplifier manufacturer.
http://www.celestra.it/

DieselAudio.com
Manufacturer of 2/4 channel mosfet bridgeable amplifiers with built in crossover, subwoofers, and car audio accessories.
http://www.dieselaudio.com/

Rockford Fosgate
Manufactures source units, signal processors, amplifiers, speakers, installation accessories, punch support.
http://www.rockfordfosgate.com/

Adire Audio
Manufacturer of car audio speaker systems.
http://www.adireaudio.com/

Directed Electronics, Inc.
Manufacturer of car alarm brands including Viper, Hornet, Python, Clifford, and Avital. Also offers amplifiers, subwoofer, component sets, and coaxials.
http://www.directed.com/

Digital Designs Mobile Electronics
Car audio subwoofers and component speaker manufacturer.
http://www.ddaudio.com/

Denon Electronics
Manufactures CD players and changers, AM/FM cassette receivers, graphic equalizers, amplifiers, and speakers.
http://www.denon.com/

Dynamic Control
Manufacturer of acoustic foam and damping materials for use in car audio applications.
http://www.dynamat.com/

Diamond Audio Technology
Designs and manufactures car and multimedia speakers.
http://www.diamondaudio.com/

EX2 Mobile Electronics
Manufacturer of mobile audio equipment, stereos, amplifiers, and compact disc changers.
http://www.membrane.com/ex2/

Eclipse
Manufacturer of car audio speakers, head units, signal processors, and amplifiers.
http://www.eclipse-web.com/

Fusion Car Audio And Security
Manufacturer of amplifiers, subwoofers, speakers, automotive audio visual systems, security systems, head units and processors.
http://www.fusioncaraudio.com/

Focal
Manufacturer of car audio speaker systems.
http://www.focal-america.com/

Hollywood Sound Labs
Manufacturer of amplifiers, speakers and crossovers.
http://www.hollywoodsoundlabs.com/

Kicker by Stillwater Designs, Inc
Manufacturer of amplifiers, subwoofers, components, subwoofer enclosures, and crossovers.
http://www.kicker.com/

Image Dynamics
Manufacturer of high-end car loudspeakers and signal processors.
http://www.imagedynamicsusa.com/

JL Audio
Manufacturer of car audio subwoofers, enclosures, component speakers, and subwoofer enclosures.
http://www.jlaudio.com/

Lanzar
Mobile audio manufacturer of speakers, subwoofers, and amplifiers.
http://www.lanzar.com/

LFB Shortwave Converter
Manufacturer of an accessory that allows reception of shortwave bands using the AM section of any modern car stereo equipment.
http://www.angelfire.com/ia/lfb/

Blaupunkt USA
Manufactures car audio systems including high power speakers, amplifiers, and other components. Also offers in-car navigation systems with GPS navigation system.
http://www.blaupunktusa.com/

Legacy Car Audio Inc.
Manufacturer of a wide range of car audio products including CD players, speakers, subwoofers, equalizers, and amplifiers.
http://www.legacycaraudio.com/

MTX
Manufacturer of car audio amplifiers, speakers, processors, cables, subwoofers, and enclosures.
http://www.mtxaudio.com/caraudio/

M & K Stereo
Manufacturer of low end car amplifiers and speakers, and a mixture of antennae and misc.
http://www.mkstereo.com/

Power Acoustik
Manufactures mobile audio speakers, signal processors, head units, subwoofers, and amplifiers.
http://www.poweracoustik.com/

Phoenix Gold
Manufacturer of car audio amplifiers, speakers, signal processors, and accessories.
http://www.phoenixgold.com/

Poweramper
Manufacturer of car audio class A, AB, and D amplifiers, speakers, capacitors and accessories.
http://www.poweramper.com/

Polk Audio
Manufactures car audio speaker systems.
http://www.polkaudio.com/

Peiying Electro-Acoustic Appliances Factory
Manufacturer of car audio speaker systems.
http://www.peiying-speaker.com/

Shien Lien Ent CO., LTD
Manufacturer of car antennas and mountings.
http://www.shien-lien.com.tw/

Soundstream
Manufacturer of car audio speaker systems, sub-woofers, and amplifiers.
http://www.soundstream.com/

Bazooka
Manufacturer of car audio speaker systems, subwoofers, amplifiers and bass-tube enclosures.
http://www.bazooka.com/

Sub Zone
Manufactures high performance car audio subwoofer enclosures designed for cars, trucks and SUVs.
http://www.subzoneusa.com/

U.S.Amps Interactive
Manufacturer of car audio amplifiers and accessories.
http://www.usamps.com/

Zapco
Manufacturer of car audio amplifiers and sign processors.
http://www.zapco.com/

MB Quart USA
German manufacturer of high end car audio speaker systems.
http://www.mbquart.com/

Massive Audio, Inc
Makers of performance audio equipment including amplifiers, subwoofers, components, coaxial speakers, and capacitators.
http://massiveaudio.com/

Arc Audio
Manufacturer of car audio amplifiers, equalizers, and crossovers.
http://www.arcaudio.com/

Harrison Labs U S A manufacturer
Manufacturer of car audio amplifiers, capacitors, crossovers, digital voltmeters and audio accessories.
http://www.hlabs.com/

USAcoustics
Manufacturer of affordable car audio amplifiers.
http://www.usacoustics.com/

Kenwood USA
Diverse manufacturer of electronics, including automotive stereo equipment.
http://www.kenwoodusa.com/

Alumapro
Manufacturer of car audio metallic alloy cone subwoofers, components, and capacitors.
http://www.alumapro.com/

Planet Audio
Manufacturer of subs, amps, and speakers.
http://www.planetaudiousa.com/

Lightning Audio
Manufacturer of car audio capacitors, connectors, interconnection cables, and batteries.
http://www.lightningaudio.com/

Rainbow Car Audio
Known for their extreme high end speakers. Also manufactures high end subwoofers and speakers.
http://www.rainbow-car-audio.de/

JVC
Manufacturer of car audio speaker systems, CD changers/receivers, amplifiers and equalizers.
http://www.jvc.com/main.jsp

Up & Up Electronics Ltd
Manufacturer and exporter of car speaker, subwoofer, speaker box, tweeter, amplifier, equalizer, speaker cable, fuse block and wire harnesses.
http://www.up-audio.com/

Treo Engineering
Manufacturer of car audio subwoofers.
http://www.treoonline.com

Profile Car Audio
Manufacturer of car audio CD/cassette, amplifiers, crossovers, equalizers, subwoofers and two-way speaker systems.
http://www.profileusa.com/

Hanmee Electronics
Manufacturer of car audio amplifiers.
http://www.hanmee.com/

Clarion
Manufacturer of car audio speaker systems, CD changers, mobile audio/video components, amplifiers, alarms and SD/CD/cassette receivers.
http://www.clarion.com/

DB Link
Manufacturer of car audio accessories including power wire, speaker wire, interconnects, distribution blocks and connectors.
http://www.dblink.net/

Beta Enterprise
Manufacturer of car audio accessories including power distribution blocks, fuse holders, battery terminals, RCA and cable adapters, and amplifier kits.
http://www.beta-cn.com/

Panasonic
Manufacturer of car audio speaker systems, CD changers, mobile video components and SD/CD/cassette receivers.
http://www.panasonic.com/consumer_electronics/caraudio/default.asp

Chongqing Electronics
Manufacturer of car audio radio cassettes, CD and MP3 players.
http://www.chongqing.com.hk/

Maxxsonics Car Audio
Manufacturer of Hifonics and Crunch car audio speaker systems and amplifiers.
http://www.maxxsonics.com/

Weier Electronics Co., Ltd
Manufacturer and exporter of car audio amplifiers, LCD monitors and speaker systems.
http://www.weier-elect.com/

TCS Hi-Fi
Manufacturer of car audio speaker components.
http://tcs.ltd.tripod.com/

Pyramid Car Audio
Diverse manufacturer of electronics, including automotive stereo equipment.
http://www.pyramidcaraudio.com/

PowerMaxx Corporation
Manufacturer of high amperage alternators for cars with high power stereo systems.
http://www.powermaxx.com/

Golden Powersource
Manufacturer of car audio CD players, AM/FM cassettes, speaker systems and video products.
http://www.gpsi.com.hk/

Orion
Manufactures high performance car audio speakers, amplifiers and accessories.
http://www.orioncaraudio.com/

Pioneer Electronics (USA) Inc.
World wide manufacturer of automotive stereo equipment and electronics.
http://www.pioneerelectronics.com/

Infinity
Manufacturer of car audio speaker systems.
http://infinitysystems.com/

SoundGate
Manufactures car audio system interfaces supporting a wide variety of brands. Includes products and company information.
http://www.soundgate.com/

Metra Electronics
Manufacturers of car audio installation kits and accessories.
http://www.metraonline.com/

Woodlawn Cabinetry
Fabricator of custom subwoofer enclosures for car audio retailers.
http://www.woodlawncabinetry.com/

Aerpro International
Manufacturer of car audio accessories with details of dealer locations.
http://www.aerpro.com

Illusion Audio
Sound quality based subwoofer and speaker drivers that specialize in shallow mounting depths.
http://www.illusionaudio.com/

StreetWires
Manufacturer of car audio electrical wiring accessories.
http://www.streetwires.com/

Oz Audio
Division of JTI offering amplifiers, subwoofers, components, and coaxials.
http://www.ozaudio.com/index.shtml

Alpine
Manufacturer of car audio equipment and mobile multimedia including, head units, speakers, amplifiers, crossovers, processors, and in-car navigation systems.
http://www.alpine-usa.com/

Earthquake Sound
Manufacturer of car audio speaker systems, amplifiers, and signal processors.
http://www.earthquakesound.com

Vented Innovative Bass Enclosures
Manufacturers of the VIBE range of car audio equipment. Specialists in powerful bass.
http://www.vibeaudio.co.uk/

A G Electronics
Manufacturers of a variety of speakers, sub woofers and dome tweeters. India.
http://www.speakers-manufacturers.com

Linear Power
Manufacturer of car audio amplifiers, subwoofer, and signal processor manufacturer.
http://www.linearpower.com/

Precision Power
Manufacturer of amplifiers, speakers, subwoofers and signal processors. USA.
http://www.precisionpower.com/

Pyleaudio
Manufacturer and distributor of car audio, mobile video, and neon lighting. USA.
http://www.pyleaudio.com/

Sunko Audio
Manufacturer and exporter specializing in electrical and electronic products, such as for car speaker, woofer, enclosure, tweeter, and subwoofer.
http://www.sunkoaudio.com/

Ultimate Sound
Manufacturers of loudspeakers, subwoofers and amplifiers. Canada.
http://www.ultimate-sound.com/

SpeakerWorks and USD Audio
Manufacturer of speakers enclosures, sound processors and accessories. Provides tutorial. USA.
http://www.usdaudio.com/

Siemens VDO
Suppliers of electronics, electrics and mechatronics to the automotive industry. Germany.
http://www3.vdo.com/

Visonik
Manufacturer of a complete range of car audio products and components. USA.
http://www.visonikcaraudio.com/

Q-Logic
Manufacturer of car audio subwoofer boxes and kickpanel enclosures. Tampa, Arizona.
http://www.qlogic.ws/

Alto Mobile
Manufacturer of car audio digital signal processors, speaker management systems, digital power amplifiers, subwoofers and loudspeakers.
http://www.altomobile.com/

Audiotech Fischer GmbH
Manufacturer of car audio amplifiers.
http://www.audiotec-fischer.com/

Wanshitong Car Electrical
Manufacturer of car audio and video products. China.
http://www.wstcarlcd.com

TAT Electronics Technology
Manufacturer of car audio and video equipment such as monitor, DVD player, and accessories. China.
http://www.ctat.com.cn

Coustic Car Audio
Makes a range of sources, amplifiers, subwoofers, speakers and accessories. USA.
http://coustic.com/

Phase Linear
Manufacturer of car loudspeaker and subwoofers. Germany.
http://www.phase-linear.de/

Carbon Electronics
Design, market and distribute car entertainment products like LCD monitors, DVD, CD and MP3 players.
http://www.thecarbon.com

Shenzhen Vogue Tech
Manufacturer of car MP3 and MP4 player with built-in FM transmitter. China.
http://www.mp3car.cn/english/

Best Glory Ind Ltd
Specializes in audio and video products. Hong Kong, China.
http://www.bestglory.com.hk

Conchord
Manufacturing car's woofers, tweeters and component kits powered by Peerless. Greece.
http://www.conchord.gr

ProTech Mobile Audio
Manufacturer of mid-high end, car audio components. USA.
http://www.protechloudspeakers.com

Infinity Systems
Manufacturer of mobile audio loudspeakers, subwoofers, and loudspeaker components. USA.
http://www.infinityspeaker.com/car/

Betamek
Manufacturer of car audio, radio, accessories, and in car entertainment. Malaysia.
http://www.betamek.com.my

American Sound Connection
Manufacturer of subwoofer boxes for car audio. Custom sub boxes, vented and sealed subwoofer enclosures. USA.
http://www.americansoundconnection.com

Audiopipe
Makes a complete line of competition car audio equipment and professional DJ cabinets.
http://www.audiopipe.com/

Baton Digital Electronic
Manufacturer of motorized headrest monitor. Taiwan.
http://www.batontech.com.tw/

FredericStevenson
Car audio component loudspeaker and subwoofer. Singapore.
http://www.fsmovingair.com