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Crux SWRTY-61C

Install a New Car Stereo and Retain Steering Wheel Controls and Other Factory Features in select 2016-2025 vehicles from Toyota with Factory Amplified Systems

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Install a New Car Stereo and Retain Steering Wheel Controls and Other Factory Features in select 2016-2025 vehicles from Toyota with Factory Amplified Systems

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

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2
List price $174.30
-36% $112.05

In stock

Only 3 Left!

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

Metra 99-8271CHG

Single DIN or Double DIN Stereo Dash Kit for select 2010-2025 4Runner (Charcoal High Grade)

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Single DIN or Double DIN Stereo Dash Kit for select 2010-2025 4Runner (Charcoal High Grade)

• Single & Double DIN Install Dash Kit
• Compatible with select 2010-2025 4Runner
• Accommodates ISO Single & Double DIN mount
• Painted to match factory dash color
• High-Grade ABS plastic construction
• Factory style texture

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1
List price $99.99
-37% $62.99

In stock

Only 3 Left!

• Single & Double DIN Install Dash Kit
• Compatible with select 2010-2025 4Runner
• Accommodates ISO Single & Double DIN mount
• Painted to match factory dash color
• High-Grade ABS plastic construction
• Factory style texture

iDataLink Maestro ACC-USB-TO3 USB Adapter

Connect Factory USB Port to Aftermarket Car Stereo in select 2018-2025 vehicles from Toyota

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Connect Factory USB Port to Aftermarket Car Stereo in select 2018-2025 vehicles from Toyota

• USB adapter for select 2018-2025 vehicles from Toyota
• Retains vehicle's factory USB port
• Connects factory USB port on aftermarket stereos

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List price $25.99
-23% $19.99

In stock

• USB adapter for select 2018-2025 vehicles from Toyota
• Retains vehicle's factory USB port
• Connects factory USB port on aftermarket stereos

Metra 99-8271S

Single DIN or Double DIN Stereo Dash Kit for select 2010-2023 4Runner (Silver)

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Single DIN or Double DIN Stereo Dash Kit for select 2010-2023 4Runner (Silver)

• Single & Double DIN Install Dash Kit
• Compatible with select 2010-2023 4Runner
• Accommodates ISO Single & Double DIN mount
• Painted to match factory dash color
• High-Grade ABS plastic construction
• Factory style texture

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Fits your 4Runner
List price $87.99
-33% $58.99

In stock

• Single & Double DIN Install Dash Kit
• Compatible with select 2010-2023 4Runner
• Accommodates ISO Single & Double DIN mount
• Painted to match factory dash color
• High-Grade ABS plastic construction
• Factory style texture

iDataLink ADS-MIC1

Factory Microphone Retention Interface Module for select 2010-2024 vehicles from Ford, Subaru, Toyota (Requires ADS-MSR, MRR, or MR2 Module)

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Factory Microphone Retention Interface Module for select 2010-2024 vehicles from Ford, Subaru, Toyota (Requires ADS-MSR, MRR, or MR2 Module)

• Factory microphone retention interface module
• Retains the factory microphone when adding an aftermarket stereo
• Compatible with select 2010-2024 vehicles from Ford, Subaru, Toyota

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Fits your 4Runner
1
List price $99.99
-20% $79.99

In stock

• Factory microphone retention interface module
• Retains the factory microphone when adding an aftermarket stereo
• Compatible with select 2010-2024 vehicles from Ford, Subaru, Toyota

Axxess AXUSB-TY6

Factory USB Port Retention Adapter in select 2018-2025 vehicles from Toyota

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Factory USB Port Retention Adapter in select 2018-2025 vehicles from Toyota

• Factory USB Retention Adapter
• Retains the OE USB port on compatible stereos
• Compatible with select 2018-2025 vehicles from Toyota

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Fits your 4Runner
List price $18.99
-11% $16.99

Available

Ships in 10-14 days

• Factory USB Retention Adapter
• Retains the OE USB port on compatible stereos
• Compatible with select 2018-2025 vehicles from Toyota

Axxess AXBUCH-T26V

Install a New Car Stereo and Add or Retain Backup Camera in select 2006-2024 vehicles from Toyota without Navigation

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Install a New Car Stereo and Add or Retain Backup Camera in select 2006-2024 vehicles from Toyota without Navigation

• Camera retention and add-on harness
• Compatible with select 2006-2024 vehicles from Toyota
• Retains the factory backup camera to an aftermarket radio
• Applicable for display and navigation model radios
• Includes the Axxess AXCSD-6V 12-volt to 6-volt converter

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Fits select models only.
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List price $73.99
-11% $65.99

In stock

Only 3 Left!

• Camera retention and add-on harness
• Compatible with select 2006-2024 vehicles from Toyota
• Retains the factory backup camera to an aftermarket radio
• Applicable for display and navigation model radios
• Includes the Axxess AXCSD-6V 12-volt to 6-volt converter

Metra 70-1765 Wiring Harness

Install a new car stereo and retain factory amplifier in select 2017-2023 vehicles from Toyota

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Install a new car stereo and retain factory amplifier in select 2017-2023 vehicles from Toyota

• Direct Connection to the factory harness
• Color coded wires for easy installation
• No cutting or splicing required
• Retains balance and fade
• Designed for non-amplified models
• Pre-wired for ASWC-1 (Sold separately)

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found car based on your search
Fits your 4Runner
1
List price $73.99
-11% $65.99

In stock

• Direct Connection to the factory harness
• Color coded wires for easy installation
• No cutting or splicing required
• Retains balance and fade
• Designed for non-amplified models
• Pre-wired for ASWC-1 (Sold separately)

PAC SAT02

Factory Satellite Antenna Adaptor for select 2012-2023 vehicles from Toyota

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Factory Satellite Antenna Adaptor for select 2012-2023 vehicles from Toyota

• For Use With Aftermarket Satellite Radio Tuner

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List price $29.00
-34% $19.00

In stock

Only 1 Left!

• For Use With Aftermarket Satellite Radio Tuner

iDataLink Maestro HRN-HRR-TO3 Wiring Harness

Install a New Car Stereo in select 2018-2024 vehicles from Toyota (Requires ADS-MRR or ADS-MRR2 Module)

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Install a New Car Stereo in select 2018-2024 vehicles from Toyota (Requires ADS-MRR or ADS-MRR2 Module)

• Fits select 2018-2024 vehicles from Toyota
• Designed for use with iDataLink ADS-MRR or iDataLink ADS-MRR2 module (Sold separately)
• Retains select factory features
• Provides navigation and illumination outputs

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found car based on your search
Fits your 4Runner
2
List price $89.99
-17% $74.99

In stock

Only 3 Left!

• Fits select 2018-2024 vehicles from Toyota
• Designed for use with iDataLink ADS-MRR or iDataLink ADS-MRR2 module (Sold separately)
• Retains select factory features
• Provides navigation and illumination outputs

Axxess AXDIS-TY3 Wiring Interface

Install New Car Stereo and Retain Steering Wheel Controls and Other Factory Features in select 2018-2024 vehicles from Toyota

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Install New Car Stereo and Retain Steering Wheel Controls and Other Factory Features in select 2018-2024 vehicles from Toyota

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

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found car based on your search
Fits your 4Runner
List price $262.99
-10% $235.99

In stock

Only 3 Left!

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

PAC RP4.2TY13

Install New Car Stereo and Retain Steering Wheel Controls, Factory Amplifier, and Other Factory Features In select 2018-2023 vehicles from Toyota

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Install New Car Stereo and Retain Steering Wheel Controls, Factory Amplifier, and Other Factory Features In select 2018-2023 vehicles from Toyota

• Direct connection to the factory harness
• Color coded wires for easy installation
• No cutting or splicing required
• Compatible with select 2018-2023 vehicles from Toyota

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found car based on your search
Fits your 4Runner
List price $369.00
-32% $250.00

Available

Ships in 10-14 days

• Direct connection to the factory harness
• Color coded wires for easy installation
• No cutting or splicing required
• Compatible with select 2018-2023 vehicles from Toyota

Crux SWRTY-61P

Install a New Car Stereo and Retain Steering Wheel Controls and Other Factory Features in select 2018-2025 vehicles from Toyota with Factory JBL Amplified Systems

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Install a New Car Stereo and Retain Steering Wheel Controls and Other Factory Features in select 2018-2025 vehicles from Toyota with Factory JBL Amplified Systems

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

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found car based on your search
Fits your 4Runner
List price $212.10
-36% $136.35

In stock.

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

PAC USBTY3

Install a New Car Stereo and Retain OEM USB Port for select 2018-2022 vehicles from Toyota

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Install a New Car Stereo and Retain OEM USB Port for select 2018-2022 vehicles from Toyota

• OEM USB port retention cable for select 2018-2022 vehicles from Toyota
• Retains use of OEM USB port when replacing factory radio
• No cutting or splicing required
• USB and empty port on each end

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found car based on your search
Fits your 4Runner
List price $29.00
-34% $19.00

Available

Ships in 10-14 days

• OEM USB port retention cable for select 2018-2022 vehicles from Toyota
• Retains use of OEM USB port when replacing factory radio
• No cutting or splicing required
• USB and empty port on each end

iDataLink Maestro RR Interface Module

Universal Stereo Replacement Interface Module for iDataLink Maestro Compatible Stereos

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Universal Stereo Replacement Interface Module for iDataLink Maestro Compatible Stereos

• Universal stereo replacement interface module
• Connects to iDataLink-compatible stereos
• Retains SWC, voice commands, etc.
• Enhances multimedia experiences with exclusive gauges, vehicle info, parking assistance, climate control, and radar detection

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Universal – fits most vehicles.
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List price $229.99
-17% $189.99

In stock

• Universal stereo replacement interface module
• Connects to iDataLink-compatible stereos
• Retains SWC, voice commands, etc.
• Enhances multimedia experiences with exclusive gauges, vehicle info, parking assistance, climate control, and radar detection

iDataLink Maestro RR2 Interface Module

Universal Stereo Replacement Interface Module for iDataLink Maestro Compatible Stereos

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Universal Stereo Replacement Interface Module for iDataLink Maestro Compatible Stereos

• Advance stereo replacement interface for select vehicles
• Offers exclusive infotainment retention
• Adds support for additional vehicles
• Enables Bluetooth programming directly from mobile device
• Retains OnStar, SYNC, Uconnect, and more

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Universal – fits most vehicles.
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List price $319.99
-19% $259.99

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Metra 40-SIRXM Antenna Adapter

Connect your factory SiriusXM antenna to a new aftermarket radio

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Connect your factory SiriusXM antenna to a new aftermarket radio

• Adapts factory satellite antenna connector
• Located at factory radio location to an aftermarket style connector
• Length: 3 feet
• Universal application

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Universal – fits most vehicles.
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List price $33.99
-29% $23.99

In stock

Only 1 Left!

• Adapts factory satellite antenna connector
• Located at factory radio location to an aftermarket style connector
• Length: 3 feet
• Universal application

Install Bay IBR74

Dual USB Pass Through Extension Panel

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Dual USB Pass Through Extension Panel

• Dual Male to Female USB Extension Cable
• 3 Feet Long
• Full Data Transfer
• Flush or Surface Mount Your USB Ports

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Universal – fits most vehicles.
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List price $37.99
-11% $33.99

In stock

Only 2 Left!

• Dual Male to Female USB Extension Cable
• 3 Feet Long
• Full Data Transfer
• Flush or Surface Mount Your USB Ports

Metra 40-UV41 Antenna Adapter

Connect your factory antenna to a new aftermarket radio for

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Connect your factory antenna to a new aftermarket radio for

• Universal Antenna Adapter
• Vehicles
• Female to female cable

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Universal – fits most vehicles.
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6
List price $14.99
-13% $12.99

In stock

Only 2 Left!

• Universal Antenna Adapter
• Vehicles
• Female to female cable

Metra 40-UV44 Antenna Adapter

Connect your factory antenna to a new aftermarket radio for

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Connect your factory antenna to a new aftermarket radio for

• Universal antenna adapter
• Vehicles
• Female to two male cable

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Universal – fits most vehicles.
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2
List price $16.99
-53% $7.99

In stock

Only 3 Left!

• Universal antenna adapter
• Vehicles
• Female to two male cable

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    Get great discounted (and possibly FREE) installation accessories with most car stereo purchases. This includes dash kits, wiring harnesses and antenna adapters that you will need to properly install your new car stereo.
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    FAQ for Aftermarket Stereo Installation Accessories in 2021 4Runner

    Q: Can I upgrade or change the Aftermarket Stereo Installation Accessories in 2021 Toyota 4Runner?

    A: Yes this page includes all the best Aftermarket Stereo Installation Accessories that work in your 4Runner.

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    • Owner's manual
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    • Vehicle produced after 2005: Inside driver's side door
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    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.