Description
Aerpro ASSU15C Steering Wheel Control Interface Harness for Subaru with Harman Kardon Amplifier Retention
A CAN Bus steering wheel control interface harness from Aerpro, the ASSU15C suits select Subaru vehicles and retains factory steering wheel controls, factory Harman Kardon amplifier (if equipped), factory reverse camera (if originally fitted), and factory antenna, with reverse trigger, park brake, speed pulse, illumination, and amplifier remote outputs, vehicle-specific plug for no-cut installation, and Type H patch lead. Recommended for installation with the Aerpro APP8 Secondary ISO Harness (sold separately).
Product Overview
The Aerpro ASSU15C is a vehicle-specific CAN Bus steering wheel control interface designed for select Subaru vehicles, enabling installation of an aftermarket head unit while retaining factory steering wheel control functionality without cutting the original vehicle wiring harness. The vehicle-specific plug connects directly into the existing factory wiring for a clean, reversible installation. The kit includes an antenna adaptor and reverse camera retention adaptor.
The ASSU15C retains the factory Harman Kardon amplifier (if equipped), preserving the factory premium speaker system performance with the new aftermarket head unit. Factory reverse camera output is retained where originally fitted (RCA reverse camera input required on the aftermarket head unit). Factory antenna is retained via the included antenna adaptor. Outputs include reverse trigger (purple), park brake (green), speed pulse (pink), illumination, and amplifier remote. The ASSU15C uses a Type H patch lead and is a CAN Bus interface type. Installation is further simplified when paired with the Aerpro APP8 Head Unit Secondary ISO Harness, sold separately.
Note: steering wheel control interfaces vary between vehicle models. Use the Aerpro Vehicle Selector to confirm the correct part for your specific vehicle before purchase. Aftermarket head unit must be SWC compatible. Steering wheel control functions may vary from OEM functions.
Features & Benefits
Retains Factory Steering Wheel Controls - No Cutting Required: The vehicle-specific CAN Bus plug connects directly into the factory wiring without cutting, retaining factory steering wheel audio controls when paired with a compatible aftermarket head unit.
Retains Factory Harman Kardon Amplifier - Where Equipped: The factory Harman Kardon premium amplifier is retained where fitted, preserving the factory premium speaker system performance with the new aftermarket head unit.
Retains Factory Reverse Camera - RCA Input Required: Factory reverse camera output is retained where originally fitted. The aftermarket head unit must have an RCA reverse camera input.
Includes Antenna Adaptor: Converts the factory Subaru antenna plug to a universal DIN plug for connection to the aftermarket head unit without additional adaptors.
Reverse Trigger, Park Brake, Speed Pulse, Illumination, and Amplifier Remote Outputs: Full suite of outputs including amplifier remote for comprehensive aftermarket head unit and amplifier integration.
CAN Bus Interface - Type H Patch Lead: CAN Bus interface type with Type H patch lead for direct connection to a compatible aftermarket head unit.
Recommended Pairing with Aerpro APP8: Installation is simplified when paired with the Aerpro APP8 Head Unit Secondary ISO Harness (sold separately).
Technical Specs
| Specification |
Detail |
| SKU |
ASSU15C |
| Brand |
Aerpro |
| Interface Type |
CAN Bus |
| Patch Lead Type |
Type H |
| Compatible Vehicles |
Select Subaru Models |
| SWC Retention |
Yes |
| Reverse Trigger Output |
Yes (Purple Wire) |
| Park Brake Output |
Yes (Green Wire) |
| Speed Pulse Output |
Yes (Pink Wire) |
| Illumination Output |
Yes |
| Amplifier Remote Output |
Yes |
| Telephone Mute Output |
No |
| OEM Reverse Camera Retention |
Yes (Where Equipped, Aftermarket HU Requires RCA Input) |
| OEM AUX Retention |
No |
| OEM USB Retention |
No |
| OEM Amplifier Retention |
Yes (Harman Kardon, Where Equipped) |
| OEM Antenna Retention |
Yes (Adaptor Included) |
| Vehicle Menus |
No |
| No-Cut Installation |
Yes (Vehicle-Specific Plug) |
| Weight |
0.30kg |
Compatible With
The ASSU15C suits select Subaru vehicles including the Subaru Liberty (Legacy) 2009-2014 (BM/BR) and Subaru Forester 2018 onwards (SK). Steering wheel control interfaces vary between models. Use the Aerpro Vehicle Selector to confirm the correct part for your specific vehicle before purchase. Aftermarket head unit must be SWC compatible. Factory reverse camera retention requires an RCA reverse camera input on the aftermarket head unit. The Aerpro APP8 Secondary ISO Harness is recommended and sold separately.
Compatible Vehicle Table
| Make |
Model |
Variant |
Years |
| Subaru |
Liberty (Legacy) |
BM, BR |
2009-2014 |
| Subaru |
Forester |
SK |
2018 onwards |
Frequently Asked Questions
Does the ASSU15C suit all Subaru models?
Steering wheel control interfaces vary between vehicle models. The ASSU15C is confirmed for the Subaru Liberty (Legacy) 2009-2014 (BM/BR) and Subaru Forester 2018 onwards (SK). Use the Aerpro Vehicle Selector to confirm the correct part for your specific vehicle and model year before purchase.
Does the ASSU15C retain the factory Harman Kardon amplifier?
Yes, where the factory Harman Kardon amplifier is equipped. This preserves the factory premium speaker system performance with the new aftermarket head unit.
Does the ASSU15C require cutting the factory wiring harness?
No. The vehicle-specific plug connects directly into the existing factory wiring without cutting or permanently modifying the original harness.
Does the ASSU15C retain the factory reverse camera?
Yes, where originally fitted. The aftermarket head unit must have an RCA reverse camera input for the factory camera feed to be retained.
What is the Aerpro APP8 and why is it recommended?
The Aerpro APP8 Head Unit Secondary ISO Harness connects between the aftermarket head unit and the ASSU15C interface, simplifying installation by providing a standardised plug connection point. It is sold separately.
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