A car audio junction box is a device that plugs into an amplifier. There are many types of car audio connectors. These include radio, speakers, headphones, and amplifiers. A typical stereo system requires at least one of these components. A common reason for multiple-amp wiring is to run a subwoofer. Similarly, a dual-amp setup can include multiple speakers. A multi-amp setup is not as complicated as wiring a single amplifier.
A car audio junction box is required if you want to connect multiple amplifiers. This will require a robust remote turn-on signal. Some cars may also have reversed positions of the battery and ignition. If the audio equipment is located in a different location, a second connector is required. Both types are connected to a power supply. The standard addresses performance requirements. If you want to hook up more than one amplifier, you will need a separate car-audio junction box.
A third type of junction box is the Quadlock connector. This box has a different frame and housing than the main connector. It has two channels for a second amplifier. Both have separate pass-through outputs. If you want to connect more than one amplifier, you can use a Y-splitter or a C-connector. This option will require additional wires. It is not necessary to use Y-splitters.
Orion Cobalt CBA2000.1D Monoblock 1-Channel Class D Amplifier for Car Subwoofer, 2000W MAX, 1/2/4 Ohm Stable, Adjustable Low Pass with Bass Boost, MOSFET Power Supply, Bass Knob Included
$119.95 (as of January 31, 2026 05:39 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
DS18 PRO-GM6B Loudspeaker - 6.5", Midrange, Red Aluminum Bullet, 480W Max, 140W RMS, 8 Ohms - Premium Quality Audio Door Speakers for Car or Truck Stereo Sound System (1 Speaker)
$34.95 (as of January 31, 2026 05:39 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
ORION Cobalt Series CB42 4” 2-Way Coaxial Car Speakers, 160W, 4 Ohms, Full Range, Enhanced Bass, Polypropylene Cone & Butyl Rubber Surround, Easy Install (Pair)
$39.95 (as of January 31, 2026 05:39 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Skar Audio TX65 6.5" 200W 2-Way Elite Coaxial Car Speakers, Pair
(as of January 31, 2026 05:39 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Leadfan 7inch Car Stereo Double Din Radio Touchscreen with Backup Camera Multimedia Car Audio Support Mirror Link, Bluetooth Caller ID, FM/MP3/MP4/USB/Subwoofer,Aux Input Car Audio Receivers
$34.28 (as of January 31, 2026 05:39 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Capapro 7" HD Portable Carplay Wireless Touch Screen Double Din Car Stereo Compatible Apple Carplay and Android Auto with GPS Navigation, Voice Control, Mirror Link, Bluetooth
$37.99 (as of January 31, 2026 05:39 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Pioneer MVH-S110BT 1-Din Digital Media Receiver Car Stereo – Bluetooth, USB Input, 50W x 4 Output, AM/FM Radio, iPhone & Android Compatible, Front & SW (Mono) RCA Output
$59.99 (as of January 31, 2026 05:39 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Ai Magic Box for Streaming Netflix/YouTube/TikTok, Wireless CarPlay Adapter Dongle with USB Drive for OEM Wired Car Play & Android Auto Cars GPS Navigation Chartplotter
$69.99 (as of January 31, 2026 05:39 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Rockford Fosgate P1683 Punch 6"x8" 3-Way Coaxial Full Range Speakers - Black (Pair)
$109.99 (as of January 31, 2026 05:39 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)