CRUX SWRSU-38C Wiring Interface Owner’s
PRODUCT FEATURES
- Retains select factory features in select Subaru vehicles while functioning with an aftermarket radio.
- Pre-programmed to retain factory Steering Wheel Controls.
- Retains StarLink functionality.
- Retains factory Auxiliary Input.
- Retains factory backup camera (see note on diagram below).
- Includes antenna adapter.
PARTS INCLUDED
INSTALLATION DIAGRAM
STARLINK RETENTION
To retain Starlink, separate the Starlink module from the radio and reconnect the harness and antenna connectors to the module. Stuff the Starlink module back into the dash and secure it with zip ties or tape to prevent it from rattling.
NOTE: The front speaker audio will be lost if the StarLink module is removed from the system.
DIP SWITCH SETTINGS
AFTERMARKET RADIO DIP SWITCH SETTINGS
SUBARU STEERING WHEEL CONTROL DIP SWITCH SETTING
3.5MM SWC CABLE
Plug in the 3.5MM to 4-Pin SWC cable to the SWC module and the 3.5mm plug to the aftermarket radio SWC port. NOTE: Insulate the Blue/Yellow wire or 3.5mm plug if not being used.
For aftermarket radios that have wires for SWC connections, cut off the 3.5mm plug on the Crux SWC Cable and connect the SWC wires as follows:
Note that there are some radios that only have SWC1 and SWC2, in this case “shield” does not need to be connected.
VEHICLE APPLICATIONS
SUBARU
- 2017 – 2020
BRZ - 2015
XV Crosstrek - 2016 – 2020
Crosstrek - 2015 – 2020
Forester - 2016 – 2020
Impreza
2015 – 2017
Impreza - 2015 – 2020
Outback - 2016 – 2020
WRX
Documents / Resources
![]() |
CRUX SWRSU-38C Wiring Interface [pdf] Owner's Manual SWRSU-38C, Wiring Interface, SWRSU-38C Wiring Interface |
![]() |
CRUX SWRSU-38C Wiring Interface [pdf] Instruction Manual SWRSU-38C Wiring Interface, SWRSU-38C, Wiring Interface, Interface |
![]() |
CRUX SWRSU-38C Wiring Interface [pdf] Installation Guide SWRSU-38C Wiring Interface, SWRSU-38C, Wiring Interface, Interface |