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Car Stereo Installation & Accessories for your 2018 Forester

Installing an aftermarket head unit involves more than just choosing a screen; it's about building a bridge between new technology and your vehicle's factory architecture. Without the right installation accessories, a high-end receiver can't provide the seamless look or the integrated functionality your car was designed with. From dash kits that match your interior texture to complex digital interfaces that talk to your vehicle's computer, these components are what make a professional-grade installation possible.

Whether you're looking to retain your steering wheel controls, adapt a proprietary antenna plug, or ensure your new Double-DIN screen sits flush in the dash, we carry a comprehensive selection of gear from industry leaders like Metra, Scosche, PAC, and iDatalink.

Use our FitFinder to find the exact parts required for your specific year, make, and model. It's the most reliable way to ensure your DIY project results in a factory-finished look.

It's a no-brainer. Get your installation gear here.

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Metra 70-1761 Wiring Harness

Install a new car stereo in select 1984-2022 vehicles from Toyota, Subaru, Scion

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Install a new car stereo in select 1984-2022 vehicles from Toyota, Subaru, Scion

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

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Fits your Forester
97
List price $6.99
-14% $5.99

In stock

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

iDataLink Maestro ACC-USB2 USB Adapter

Connect Converted Factory USB Port to Aftermarket Car Stereo in select 2012-2025 vehicles from Toyota, Subaru, Honda

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Connect Converted Factory USB Port to Aftermarket Car Stereo in select 2012-2025 vehicles from Toyota, Subaru, Honda

• USB adapter for select 2012-2025 vehicles from Toyota, Subaru, Honda
• Retains vehicle's factory USB port
• Converts factory USB port cable to full size male USB
• Male USB can be plugged into aftermarket radio

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List price $21.99
-23% $16.99

In stock

Only 1 Left!

• USB adapter for select 2012-2025 vehicles from Toyota, Subaru, Honda
• Retains vehicle's factory USB port
• Converts factory USB port cable to full size male USB
• Male USB can be plugged into aftermarket radio

Metra 40-LX11

Connect your factory antenna to a new aftermarket radio for select 2006-2025 vehicles from Toyota, Subaru, Lexus

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Connect your factory antenna to a new aftermarket radio for select 2006-2025 vehicles from Toyota, Subaru, Lexus

• Antenna adapter for select 2006-2025 vehicles from Toyota, Subaru, Lexus
• Use for replacing vehicle radio
• Male Motorola connector on one end
• Female Molex connector on other end

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Fits your Forester
35
List price $17.99
-17% $14.99

In stock

• Antenna adapter for select 2006-2025 vehicles from Toyota, Subaru, Lexus
• Use for replacing vehicle radio
• Male Motorola connector on one end
• Female Molex connector on other end

Axxess AXBUCH-T16V

Install a New Car Stereo and Retain Backup Camera in select 2015-2019 vehicles from Subaru

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Install a New Car Stereo and Retain Backup Camera in select 2015-2019 vehicles from Subaru

• Camera retention and add-on harness
• Compatible with select 2015-2019 vehicles from Subaru
• Retains the factory backup camera to an aftermarket radio
• Applicable for display and navigation model radios only
• Includes the Axxess AXCSD-6V 12-volt to 6-volt converter

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List price $67.99
-10% $60.99

In stock

• Camera retention and add-on harness
• Compatible with select 2015-2019 vehicles from Subaru
• Retains the factory backup camera to an aftermarket radio
• Applicable for display and navigation model radios only
• Includes the Axxess AXCSD-6V 12-volt to 6-volt converter

Crux SWR-A

Steering Wheel Control Retention Interface for Analog SWC

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Steering Wheel Control Retention Interface for Analog SWC

• Retains Steering Wheel Controls
• Retains VR Command
• Works with Sony Radio with CarPlay Function
• Dimension: 3.5" L x 2.5" W x 7" H

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List price $90.30
-36% $58.05

In stock

• Retains Steering Wheel Controls
• Retains VR Command
• Works with Sony Radio with CarPlay Function
• Dimension: 3.5" L x 2.5" W x 7" H

American International SBK929GB

Single DIN or Double DIN Stereo Dash Kit for select 2015-2024 vehicles from Subaru (Gloss Black)

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Single DIN or Double DIN Stereo Dash Kit for select 2015-2024 vehicles from Subaru (Gloss Black)

• Single & Double DIN Install Dash Kit
• Compatible with select 2015-2024 vehicles from Subaru
• 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 Forester
2
List price $64.00
-64% $22.99

In stock

• Single & Double DIN Install Dash Kit
• Compatible with select 2015-2024 vehicles from Subaru
• Accommodates ISO Single & Double DIN Mount
• Painted to Match Factory Dash Color
• High-Grade ABS Plastic Construction
• Factory Style Texture

Axxess AXBUCH-SB2

Replace Factory Stereo and Retain Factory Backup Camera in select 2015-2024 vehicles from Subaru

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Replace Factory Stereo and Retain Factory Backup Camera in select 2015-2024 vehicles from Subaru

• Harness to retain factory reverse camera to an aftermarket stereo
• Compatible with select 2015-2024 vehicles from Subaru
• Designed for models with base radio, 6.2” screen
• All vehicles will require AXCSD-6V (sold separately)

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List price $44.99
-11% $39.99

In stock

Only 3 Left!

• Harness to retain factory reverse camera to an aftermarket stereo
• Compatible with select 2015-2024 vehicles from Subaru
• Designed for models with base radio, 6.2” screen
• All vehicles will require AXCSD-6V (sold separately)

Metra 40-SB10

Antenna Adapter for select 2005-2025 vehicles from Subaru

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Antenna Adapter for select 2005-2025 vehicles from Subaru

• Antenna adapter
• For select 2005-2025 vehicles from Subaru
• Use for replacing vehicle radio
• Male Motorola connector on one end
• Female Subaru-style antenna connector on the other end

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List price $14.99
-27% $10.99

In stock

• Antenna adapter
• For select 2005-2025 vehicles from Subaru
• Use for replacing vehicle radio
• Male Motorola connector on one end
• Female Subaru-style antenna connector on the other end

Metra 40-NI11 Antenna Adapter

Connect your factory antenna to a new aftermarket radio for select 1998-2025 vehicles from Subaru, Nissan

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Connect your factory antenna to a new aftermarket radio for select 1998-2025 vehicles from Subaru, Nissan

• Factory Antenna Adapter to Aftermarket Radio Adapter
• select 1998-2025 vehicles from Subaru, Nissan Vehicles
• Nissan diversity factory antenna with 2-pin plug to aftermarket radio
• Disables diversity functions

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4
List price $13.99
-7% $12.99

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Only 2 Left!

• Factory Antenna Adapter to Aftermarket Radio Adapter
• select 1998-2025 vehicles from Subaru, Nissan Vehicles
• Nissan diversity factory antenna with 2-pin plug to aftermarket radio
• Disables diversity functions

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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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

iDataLink Maestro HRN-HRR-SU2 Wiring Harness with ADS-MRR Module

Install a new iDatalink-ready stereo and retain the steering wheel audio controls and other factory features in select 2012-2021 vehicles from Subaru, Toyota, Scion

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Install a new iDatalink-ready stereo and retain the steering wheel audio controls and other factory features in select 2012-2021 vehicles from Subaru, Toyota, Scion

• Fits select 2012-2021 vehicles from Subaru, Toyota, Scion
• Designed for use with iDataLink ADS-MRR module (Included)
• Retains select factory features
• Provides navigation and illumination outputs

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List price $254.98
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In stock.

• Fits select 2012-2021 vehicles from Subaru, Toyota, Scion
• Designed for use with iDataLink ADS-MRR module (Included)
• Retains select factory features
• Provides navigation and illumination outputs

Axxess AX-TOY28SWC

Steering Wheel Control (SWC) Retention Harness with RCA Aux-In Connectors for select 2006-2025 vehicles from Nissan, Toyota, Subaru

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Steering Wheel Control (SWC) Retention Harness with RCA Aux-In Connectors for select 2006-2025 vehicles from Nissan, Toyota, Subaru

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

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3
List price $14.99
-13% $12.99

In stock

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

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• Double-DIN Dash Kit
• Painted scratch-resistant black
• High-Grade ABS plastic construction
• Original factory-like fit and finish
• Includes installation instructions

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29
List price $11.95
-33% $7.99

In stock

• Double-DIN Dash Kit
• Painted scratch-resistant black
• High-Grade ABS plastic construction
• Original factory-like fit and finish
• Includes installation instructions

Axxess AXSWCH-T28 Wiring Harness

Install a new car stereo and retain factory amplifier in select 2011-2025 vehicles from Toyota, Subaru, Lexus

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Install a new car stereo and retain factory amplifier in select 2011-2025 vehicles from Toyota, Subaru, Lexus

• Direct Connection to the factory harness
• Color coded wires for easy installation
• No cutting or splicing required
• Pre-wired for ASWC-1 (Sold separately)

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3
List price $15.99
-13% $13.99

In stock

Only 3 Left!

• Direct Connection to the factory harness
• Color coded wires for easy installation
• No cutting or splicing required
• Pre-wired for ASWC-1 (Sold separately)

Axxess AXBUCH-SB1

Install a New Car Stereo and Retain Factory Backup Camera in select 2015-2023 vehicles from Subaru with 7" Screens

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Install a New Car Stereo and Retain Factory Backup Camera in select 2015-2023 vehicles from Subaru with 7" Screens

• Camera retention harness for select 2015-2023 vehicles from Subaru
• Designed for Subaru models with 7" screens
• 5-pin factory rear view camera retention harness
• 6 volt power adapter included

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List price $37.99
-11% $33.99

In stock

Only 3 Left!

• Camera retention harness for select 2015-2023 vehicles from Subaru
• Designed for Subaru models with 7" screens
• 5-pin factory rear view camera retention harness
• 6 volt power adapter included

Metra 99-8907HG Dash Kit

Single DIN Stereo Dash Kit for select 2015-2021 vehicles from Subaru

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Single DIN Stereo Dash Kit for select 2015-2021 vehicles from Subaru

• Single DIN Install Dash Kit
• Fits select 2015-2021 vehicles from Subaru Vehicles
• Accommodates ISO Single DIN Mount
• Painted to Match Factory Dash Color
• High-Grade ABS Plastic Construction
• Factory Style Texture

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your Forester
1
List price $54.99
-36% $34.99

In stock

Only 2 Left!

• Single DIN Install Dash Kit
• Fits select 2015-2021 vehicles from Subaru Vehicles
• Accommodates ISO Single DIN Mount
• Painted to Match Factory Dash Color
• High-Grade ABS Plastic Construction
• Factory Style Texture

Metra 95-8907HG Dash Kit

Double DIN Stereo Dash Kit for select 2015-2021 vehicles from Subaru

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Double DIN Stereo Dash Kit for select 2015-2021 vehicles from Subaru

• Double DIN Install Dash Kit
• Fits select 2015-2021 vehicles from Subaru Vehicles
• Accommodates ISO Double DIN Mount
• Painted to Match Factory Dash Color
• High-Grade ABS Plastic Construction
• Factory Style Texture

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your Forester
2
List price $46.99
-47% $24.99

In stock

• Double DIN Install Dash Kit
• Fits select 2015-2021 vehicles from Subaru Vehicles
• Accommodates ISO Double DIN Mount
• Painted to Match Factory Dash Color
• High-Grade ABS Plastic Construction
• Factory Style Texture

iDataLink Maestro HRN-HRR-SU2 Wiring harness

Install a New Car Stereo in select 2012-2021 vehicles from Subaru, Toyota (Requires ADS-MRR or ADS-MRR2 Module)

HRN-HRR-SU2 big
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Install a New Car Stereo in select 2012-2021 vehicles from Subaru, Toyota (Requires ADS-MRR or ADS-MRR2 Module)

• Fits select 2012-2021 vehicles from Subaru, Toyota
• Designed for use with iDataLink ADS-MRR or iDataLink ADS-MRR2 module (Sold separately)
• Retains select factory features
• Provides navigation and illumination outputs

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your Forester
List price $109.99
-27% $79.99

In stock

• Fits select 2012-2021 vehicles from Subaru, Toyota
• Designed for use with iDataLink ADS-MRR or iDataLink ADS-MRR2 module (Sold separately)
• Retains select factory features
• Provides navigation and illumination outputs

iDataLink Maestro ACC-USB-SU2 USB Adapter

Connect Factory USB Port to Aftermarket Car Stereo in select 2015-2022 vehicles from Subaru

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Connect Factory USB Port to Aftermarket Car Stereo in select 2015-2022 vehicles from Subaru

• USB adapter for select 2015-2022 vehicles from Subaru
• Retains vehicle's factory USB port
• Connects factory USB port on aftermarket stereos

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Fits your Forester
List price $23.99
-29% $16.99

In stock

• USB adapter for select 2015-2022 vehicles from Subaru
• Retains vehicle's factory USB port
• Connects factory USB port on aftermarket stereos

Crux SWRSU-38C

Install a New Car Stereo and Retain Steering Wheel Controls and Other Factory Features in select 2015-2020 vehicles from Subaru

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Install a New Car Stereo and Retain Steering Wheel Controls and Other Factory Features in select 2015-2020 vehicles from Subaru

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

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Add details to confirm fitment.
List price $168.00
-36% $108.00

In stock

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

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    FAQ Frequently asked questions in Car Stereo Installation & Accessories


    In most modern vehicles, the factory radio is part of a larger, integrated dash panel rather than a standardized rectangular box. A vehicle-specific dash kit provides the necessary brackets and trim pieces to adapt the universal ISO-mount of an aftermarket stereo to the unique shape and mounting points of your dashboard.

    Choosing the right Car Stereo Installation & Accessories begins with understanding your vehicle's make, model, and year. This information helps you select compatible wiring harnesses and mounting kits. Next, consider your audio preferences. If you're looking to upgrade your car's sound system significantly, opt for an amplifier installation kit that matches your amplifier's power requirements.Additionally, check the head unit's compatibility with your smartphone and other devices.

    Features like Bluetooth connectivity, Apple CarPlay, or Android Auto can greatly enhance your driving experience. Ensure that the accessories you choose align with your car audio goals, whether it's improved sound quality, convenience, or connectivity.

    Not if you use a Steering Wheel Control (SWC) interface. These modules translate the signals from your factory buttons into a language your new stereo understands. Many modern integration harnesses, like the iDatalink Maestro, include this functionality along with the ability to display engine data and tire pressure on your new screen.
    We strongly recommend using a wiring harness. Cutting factory wires is permanent, increases the risk of short circuits, and can void your vehicle's electrical warranty. A harness allows you to do all your soldering or crimping on the bench, then simply plug the new assembly into the factory connector without damaging the car's original wiring.

    Safety is paramount during Car Stereo Installation & Accessories installation. Start by disconnecting the car's battery to avoid electrical accidents. When handling wiring and electrical connections, follow proper insulation techniques to prevent short circuits or fires. Secure all cables and wires away from moving parts like steering columns and pedals.

    During the installation of amplifiers and subwoofers, ensure that they are securely mounted to prevent movement while driving. Avoid drilling into gas tanks, brake lines, or other sensitive areas when installing components. It's also a good practice to have a fire extinguisher and a first aid kit on hand in case of emergencies.

    All About

    Car Stereo Installation & Accessories

    Navigating the hardware required for a radio swap can be confusing. To get the job done right the first time, it's helpful to understand the specific role each accessory plays in the signal chain and the physical assembly.

    Dash Kits: The Cosmetic Foundation

    The dash kit is what ensures your new stereo doesn't look like an afterthought. These kits are engineered to match the exact color, texture, and contour of your factory dash.

    • Single-DIN Kits: Feature a 2-inch tall opening, often including a storage pocket to fill the extra space.
    • Double-DIN Kits: Feature a 4-inch tall opening designed for large touchscreens and multimedia receivers.
    • Multi-Kits: Versatile designs that can be configured for either size depending on your hardware choice.

    Wiring Harnesses and Data Interfaces

    The wiring harness is the electrical nervous system of your install.

    • Standard Harnesses: Provide basic power, ground, and speaker connections for older vehicles.
    • Data Interfaces: Required for modern vehicles with CAN-bus systems. These modules "talk" to the car’s computer to provide a 12V switched power source (which many new cars lack at the radio) and retain safety features like door chimes, OnStar, or factory amplifiers.

    Steering Wheel and Camera Retention

    Convenience and safety shouldn't be sacrificed for better sound. Dedicated interfaces allow you to keep your hands on the wheel and your eyes on the screen when reversing. If your vehicle has a factory backup camera, a camera retention adapter allows you to feed that video signal directly into your new touchscreen's RCA input.

    Professional Installation Tools

    Using the wrong tools can lead to cracked plastic or scratched leather. A set of nylon trim removal tools is essential for prying off dash panels without leaving permanent pry marks. Additionally, we recommend high-quality crimp connectors or heat-shrink tubing to ensure your electrical connections remain stable through years of vehicle vibration.

    The Sonic Electronix Advantage

    We take the guesswork out of the DIY process. When you use our vehicle selector, we don't just show you parts that "might" work; we curate a list of accessories verified to fit your specific cabin. As an Authorized Online Retailer for reputable brands, every interface and kit we sell is backed by full technical support to help you through the trickiest parts of your installation.

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    We love people and we're ready to help you! See what separates us from our competition.

    Take advantage of our VIP rewards like 10% back on your purchases, free 2-day shipping, extended warranties, and free returns! Gain access to all of these rewards without any membership fees.
    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.
    We are an Authorized Dealer for all the brands we sell, including the most premium brands in car and marine audio such as Hertz, JL Audio, NVX, Rockford Fosgate, Kicker, Alpine, Kenwood and many more.
    Shop Deals and get up to 30% off premium brands! Shop Now! We are always looking out for the best products and deals to offer our customers. Don’t pay too much by shopping elsewhere!
    We have information on brands, gear, and more for you to explore! Check out our YouTube Channel for helpful how-to videos, product reviews, and Q&As. For a more detailed look, also visit our Learning Center!
    Our trained experts are here to assist you! They are just a phone call or click away to help you get the right gear for you and your vehicle!
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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.