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The Aerpro ASSU13C is a CAN bus steering wheel control (SWC) interface engineered for a range of Subaru vehicles. It allows you to install an aftermarket head unit while retaining your factory steering wheel controls, reverse camera (including side cameras where fitted), factory antenna, and AUX input all without cutting the factory wiring harness.
The ASSU13C connects via a vehicle-specific plug that drops straight into the existing wiring, and the kit includes an antenna adaptor, reverse and side camera retention adaptors, and AUX retention leads. It provides reverse trigger (purple) and park brake (green) output feeds for compatible head units, along with an illumination output. Note that this interface does not retain a factory amplifier it suits non-amplified Subaru variants. For Subaru models with a factory Harman Kardon system, refer to the ASSU9C. For a complete installation, Aerpro recommends pairing the ASSU13C with the APP8 Head Unit Secondary ISO Harness, sold separately.
| Specification | Detail |
|---|---|
| Part Number | ASSU13C |
| Brand | Aerpro |
| Interface Type | CAN Bus |
| Patch Lead Type | H |
| Vehicle Fit | Various Subaru (see Aerpro Vehicle Selector) |
| Reverse Trigger Output | Yes (purple wire) |
| Park Brake Output | Yes (green wire) |
| Speed Pulse Output | No |
| Illumination Output | Yes |
| Amp Remote Output | No |
| Telephone Mute Output | No |
| Vehicle Menus Retention | No |
| OEM Amplifier Retention | No |
| OEM Reverse Camera Retention | Yes (including side cameras) |
| OEM AUX Input Retention | Yes |
| OEM USB Input Retention | No |
| OEM Antenna Retention | Yes |
| Included Accessories | Antenna adaptor, camera retention adaptors, AUX retention leads |
| Recommended Accessory | Aerpro APP8 (sold separately) |
Engineered for various Subaru vehicles — use the Aerpro Vehicle Selector to confirm your specific model and year before purchasing. Key compatibility notes:
Steering wheel control functions may vary from the original OEM functions depending on the head unit installed.
Confirm with supplier.
Which Subaru models does the ASSU13C fit?
The ASSU13C suits various Subaru models. Use the Aerpro Vehicle Selector to confirm compatibility with your specific vehicle make, model, and year before purchasing, as fitment varies between variants.
Does this interface retain the factory reverse camera?
Yes, provided the camera was originally fitted. The ASSU13C retains the factory reverse camera including side cameras. The aftermarket head unit must have an RCA reverse camera input to utilise this feature. On Impreza, Forester, and XV models, side cameras are displayed via the top cluster.
Does the ASSU13C retain a factory amplifier?
No. This interface does not retain a factory amplifier. If your Subaru is fitted with a factory Harman Kardon amplified system, refer to the ASSU9C instead.
Do I need to cut any factory wiring?
No. The ASSU13C uses a vehicle-specific plug that connects directly into the existing factory wiring harness without cutting or splicing.
What is the APP8 harness and do I need it?
The Aerpro APP8 is a head unit secondary ISO harness that connects between the aftermarket head unit and the ASSU13C interface, simplifying the overall installation. It is sold separately and while not mandatory, Aerpro recommends it for a cleaner, more straightforward install.
Servicing the Illawarra and surrounding areas for over 30 years, Frankies Auto Electrics is a multi-award winning service provider and retail outlet, covering all aspects of auto electrical work and in-car entertainment. From sales and installations, electrical diagnostics and fault finding, upgrades and additions, our team of qualified sales people, technicians and installers are on hand to help.
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