Garage
Shop

See all parts that fit your 1983 CJ7

Alpine KCA-121B

Auxiliary Input Adapter for Ai-Net Alpine In-Dash Stereos

Alpine
Shop all Alpine
highlight-star-icon

Additional RCA input instead of CD changer

Learn more about the kca121b

We apologize

This item has been discontinued


Loading...
Limited time!
R14X2 main

Rockford Fosgate Prime R14X2

120W Peak (60W RMS) 4” Prime Series 2 Way Coaxial 4-ohm Speakers

14
-7.69%

$59.99

List price $64.99

P152 main

Rockford Fosgate Punch P1 P152

160W Peak (80W RMS) 5.25" Punch Series 2 Way Coaxial 4-ohm Speakers

27

Description


Alpine brand icon

Authorized dealer

General Features:

  • The KCA-121B converts Ai-Net changer port on compatible Alpine receivers into an auxiliary input.
  • Additional RCA input instead of CD changer Ai-Net type port
  • Note: Only one (auxiliary accessory OR CD Changer) can be used. In other words, the RCA auxiliary input could not be used while CD changer input is used.
  • Authorized Internet Dealer

  • Loading...
    21576K main

    Select Increments Intra-Pod (21576K)

    Custom-fit center console subwoofer enclosure with 8" Kicker Subwoofer for select 1976-1995 CJ7 and Wrangler and Scrambler

    1
    -7.02%

    $529.91

    List price $569.94

    21576KA main

    Select Increments Intra-Pod (21576KA)

    Custom-fit center console with 8" Kicker subwoofer and Amplifier for select 1976-2006 vehicles from Jeep

    108
    -13.10%

    $729.90

    List price $839.92

    63092KA main

    Select Increments Sono-Pod (63092KA)

    Custom-fit subwoofer enclosure with 10" Kicker Subwoofer and 400W Monoblock

    109
    -17.58%

    $543.90

    List price $659.92

    63092K main

    Select Increments Sono-Pod (63092k)

    Custom-fit enclosure with 10" Kicker subwoofer for

    2
    -11.80%

    $343.91

    List price $389.94

    Limited time!
    46CSC654 main

    Kicker CSC65 (46CSC654)

    600W Peak (200W RMS) 6.5” CS Series 2 Way Coaxial 4-ohm Speakers

    122
    -33.36%

    $79.96

    List price $119.99

    43DSC6504 main

    Kicker DSC650 (43DSC6504)

    480W Peak (120W RMS) 6.5” DS Series 2-way 4-ohm Coaxial Car Speakers (DSC6504)

    28
    -10.53%

    $84.99

    List price $94.99

    DB652 main

    Polk Audio DB652 (DB 652)

    600W Peak (200W RMS) 6.5" DB+ Series 2 Way Coaxial 4-ohm Car, Marine and Powersports Speakers

    12
    -9.16%

    $109.00

    List price $119.99

    Limited time!
    Club 622 main

    JBL Club 622

    360W Peak (120W RMS) 6.5" Club Series 2-way Coaxial 3-ohm Speakers

    5
    -28.58%

    $99.95

    List price $139.95

    MPK 163.3 main

    Hertz MPK163.3

    600W Peak (300W RMS) 6.5" Mille PRO Series 3-way 4-ohm Component Speaker System

    2
    -14.89%

    $999.99

    List price $1175.00

    PNW-65CS2 main

    AudioControl PNW-65CS2

    250W Peak (200W RMS) 6.5″ PNW Series 2 Way Component 3-ohm Speakers

    4
    -5.90%

    $319.00

    List price $339.00


    Best selling similar products

    70-5520AUX small

    Metra 70-5520AUX

    • Auxiliary Input Retention Harness For Select Ford Vehicles
    • Retains The Stereo Auxilary In Jack
    • OEM Quality Harness
    • Quick, Simple, And Easy Installation

    (4)

    $15.99

    List price $47.99

    AXBUCH6V-H24V small

    Axxess AXBUCH6V-H24V

    • Camera retention and add-on harness
    • Compatible with select 2015-2025 vehicles from Honda without touchscreen stereos
    • Retains the factory backup camera to an aftermarket radio
    • Applicable for display and navigation model radios
    Axxess AXCSD-6V required (Sold separately)

    $36.99

    List price $41.99

    AXUSB-GM3 small

    Axxess AXUSB-GM3

    • 3 Feet USB, AUX, and HDMI replacement panel for select 2014-2024 vehicles from GMC, Chevrolet, Cadillac
    • Designed to replace the factory USB/AUX panel in certain GM vehicles
    • Panel face includes two USB inputs, 3.5mm AUX input, and HDMI port
    • Panel wiring includes two USB type A output, HDMI output, and two RCA output

    $38.99

    List price $43.99

    AXUSB-GM6 small

    Axxess AXUSB-GM6

    • 6 Feet USB, AUX, and HDMI replacement panel for select 2014-2024 vehicles from Chevrolet, GMC, Cadillac
    • Designed to replace the factory USB/AUX panel in certain GM vehicles
    • Panel face includes two USB inputs, 3.5mm AUX input, and HDMI port
    • Panel wiring includes two USB type A output, HDMI output, and two RCA output

    $52.99

    List price $58.99

    AXDIS-HK3 small

    Axxess AXDIS-HK3

    • Direct connection to the factory harness
    • Color coded wires for easy installation
    • No cutting or splicing required

    $235.99

    List price $262.99

    AXDIS-CL2 small

    Axxess AXDIS-CL2

    • Direct connection to the factory harness
    • Color coded wires for easy installation
    • No cutting or splicing required

    (2)

    $235.99

    List price $262.99

    AXDIS-FD1 small

    Axxess AXDIS-FD1 Wiring Interface

    • Direct connection to the factory harness
    • Color coded wires for easy installation
    • No cutting or splicing required

    (2)

    $235.99

    List price $262.99

    AXDI-CH5 small

    Axxess AXDI-CH5 Wiring Interface

    • Direct connection to the factory harness
    • Color coded wires for easy installation
    • No cutting or splicing required

    $163.99

    List price $182.99

    Specifications & Details


    Auxiliary Adapter Features
    Wire / Cable Type
    Brand Specific Port to RCA Interconnects
    Compatible Brands
    Alpine
    Cable Connection Port
    Ai-NET
    Allows Audio Playback
    Yes
    Allows Video Playback
    No
    Length (ft.)
    .5 feet
    Primary Color
    Black
    Warranty and Return Policy
    Parts Warranty Duration
    1 year
    Labor Warranty Duration
    1 year
    Warranty Provider
    Sonic Electronix

    Item Details


    Manufacturer:

    Model Number:

    KCA-121B

    Weight:

    0.42lbs

    Internal SKU:

    kca121b

    Internal Product ID:

    9706

    Customer Ratings & Reviews


    Alpine KCA-121B thumbnail image

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



    Durability
    5
    Value
    5
    Features
    5
    Design
    4.4
    Usability
    5

    Customer Reviews

    Sort by:

    Loading...

    :)

    thank god, this paired with the pac ic-av is 10 times better than alpines ipod cable, if you like scrolling through your ipod instead of the headunit...if you get this, you need to change the settings to an aux input on the headunit..use your manual.

    By nick on September 24, 2008

    24 found this helpful


    Great Product

    This product worked great with my alpine cda-9883, I plugged it in to the back of my unit and it fit perfectly. I would recommend this product to family and friends. I do recommend you checking to make sure you can use this product on your alpine headunit.

    By Beezy101 on January 2, 2015

    22 found this helpful


    Worked great, as expected

    Works without fault, highly recommend over cheap eBay knockoff. Alpine proves to be a time tested reliable company

    By Rs on May 3, 2015

    17 found this helpful



    CH3000D-RB small

    Boss CH3000D Factory R/B

    Class D Monoblock Amplifier

    (2)

    $124.99

    List price $249.99

    BL3KD small

    Boss BL3KD

    3000W Blade Series Class D Monoblock Amplifier (BL-3KD)

    (4)

    $219.99

    List price $399.99

    4F400 small

    Sound Storm SSL 4F400

    4-Channel Force Series Amplifier

    (2)

    $49.99

    List price $99.99

    2SVK12-GRAY small

    Sonic Sub Box: 2SVK12 (Gray)-OPEN BOX

    12" Kicker Solo-Baric Square-Hole Dual Slot Vented MDF Enclosure

    $42.99

    List price $124.99

    CNP2000UCA+CNPALP1 small

    Alpine XM Satellite Radio Solution Package

    Audiovox CNPALP1 Alpine Specific XM Adapter + Audiovox CNP2000UCA XM Direct 2 Universal Tuner

    (14)

    $131.99

    List price $154.98

    Related Searches


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

    1983 Jeep CJ7

    2015 Audi A5

    2003 MINI Cooper

    2013 Ford Fiesta

    2003 Dodge Durango

    2004 Subaru Forester

    2017 Dodge Durango

    2004 Ford Focus

    2012 Ford Transit Connect

    2013 Subaru Outback

    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.