20-pin Subaru/Nissan Headunit Harness with SWC (2007-up Non-Navigation vehicles)

Item Number: AHH-70-7552

20-pin Connector for Subaru radio install

20-pin connector Pinout - Nissan Nissan Stereo Install kit


This adapter is used to install an aftermarket headunit/Stereo Receiver in a 2007-up Subaru or Nissan.

Adapter includes pins to connect a steering wheel control interface module. (Pins 4,13,14)* and includes pin 19. (Pin 19 connects to the Vehicle Speed Sensor signal on many Subaru vehicles). In addition, dedicated ground and +12 Volt Accessory wires are provided to power a steering wheel control interface module.

**Pin 14 is grounded in the harness for the convenience of the installer. If this connection is not desired, cut the wire that connects between pin 14 and pin 10.

Wires are either standard color coded or labeled for a simplified installation:

Wire Color Function
Red +12 Volt Accessory (There are 2 of these wires)
Yellow +12 Volt Constant
Black Chassis Ground (for Subaru only)
Blue/White Antenna Amp Turn-On
Orange Illumination
White Left Front Speaker +
White/Black Left Front Speaker -
Gray Right Front Speaker +
Gray/Black Right Front Speaker -
Green Left Rear Speaker +
Green/Black Left Rear Speaker -
Violet Right Rear Speaker +
Violet/Black Right Rear Speaker -
Pink Vehicle Speed Sensor (VSS) (for Subaru only)
Brown Vehicle Speed Sensor (VSS) (for Nissan only)
Green (Labelled) Steering Wheel Switch 1 (May be different for Nissan)
Blue (Labelled) Steering Wheel Switch 2 (May be different for Nissan)

Ground Wire Note: The ground wire found in the wiring harness is only for select vehicles only. Confirm that your vehicle's wiring harness has a corresponding ground wire. If no wire is present, connect the ground wire of your aftermarket head unit to the vehicle's metal chassis.

This adapter does not include the 3.5mm connector that is used to connect the steering wheel control wires to an aftermarket audio receiver. If you are using an ASWC-1 or similar steering wheel control interface, this connector will be included with the interface. If your new headunit/audio receiver has the capability to recognize steering wheel controls without an interface (Sony normally has this capability), you do not need the ASWC-1. The 3.5mm jack for connecting to the back of the new headunit can be purchased HERE.



Vehicle Make:

Subaru USB adapter

Subaru USB adapter photo

OEM headunit model number:

Need the 16-pin adapter?

16-pin adapter photo 16-pin adapter photo

The 16-pin adapter retains functionality of the auxiliary input in the console. The wiring color code for the 16-pin harness/connector is as follows:

Gray - Reverse signal (Signal is NOT present on the WRX or Forester. Most pre-2012 cars also do not have this signal.)
Green - E-brake signal (Signal is NOT present on the WRX or Forester. Most pre-2012 cars also do not have this signal.)

Option 1:
Red RCA - Right Auxiliary audio input
White RCA - Left Auxiliary audio input

Option 2:
3.5mm plug - Stereo Auxiliary input

***Harman Kardon vehicles will include an additional wire. This wire is a +12V power connection for the stock Harman Kardon amplifier. It must be connected to the blue Amp turn-on wire on the 20-pin connector.***

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16-pin adapter photo

Option 1

Does this vehicle have the Harman Kardon package?
Vehicle Model:
16-pin adapter photo

Option 2

Does this vehicle have the Harman Kardon package?
Vehicle Model:


(This is NOT a complete list. Please help us update it. If a known model is not listed, let us know)

2012-2014 Crosstrek XV (w/o nav)
2009-2015 Forester (w/o nav)
2008-2014 Impreza (w/o nav)
2010-2014 Legacy (w/o nav)
2010-2014 Outback (w/o nav)
2010-2015 WRX and WRX STI (w/o nav)
***This harness is not compatible with any 2016 Subaru vehicle. Please contact us (inquiry@autoharnesshouse.com) for the correct harness.

2008-2013 G37
2006-2008 G35

2009-2020 370Z
2007-2020 Altima
2008-2020 Armada
2009-2010 Cube
2008-2020 Frontier
2011-2014 Juke
2007-2020 Maxima (w/o nav or tech pkg.)
2007-2008 Maxima (w/ nav)
2009-2020 Murano S
2011-2018 NV
2017-2020 Pathfinder
2011-2016 Quest
2008-2020 Rogue
2007-2020 Sentra
2007-2019 Versa
2009-2010 Xterra S
2009-2010 Xterra X
2008-2008 Xterra (Late Production)

Nissan Bluetooth Module Bypass

Nissan Frontier Bluetooth Bypass Carplay

Nissan Vehicles ONLY! Some Nissan vehicles have a separate bluetooth unit that is wired between the main audio receiver and the steering wheel controls. If your vehicle has this, you will need the Nissan Bluetooth Module Bypass Plug to get your OEM steering wheel buttons to function properly. can check our vehicle compatibility database for details on your specific vehicle to see if this adapter is recommended for your vehicle or email us if the information isn't found!


Related Products:

Sony Headunit Direct Wire adapter for Subaru and Nissan (fits 2010-2015 Non-Navigation Subaru and 2007-2021 Nissan Vehicles)
Sony to Nissan (or Sony to Subaru Adapter)

Subaru Aftermarket Headunit installation kit (With 16-pin adapter and integrated ASWC-1 harness)
Stock Backup Camera Retrofit Harness


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