CRUX SWRSU-38C Radio Replacement Wiring Interface User Manual

: June 4, 2024
: CRUX

Table of Contents

PRODUCT FEATURES:
INSTALLATION DIAGRAM:
STARLINK RETENTION:
DIP SWITCH SETTINGS:
VEHICLE APPLICATIONS:
Documents / Resources
- Read User Manual Online (PDF format)
- Download This Manual (PDF format)

SWRSU-38C Radio Replacement Wiring Interface
User Manual

SWRSU-38C
Radio Replacement with Steering Wheel Control Retention for Select Non- Amplified Subaru Vehicles 2015 – Up

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 the diagram below).
Includes antenna adapter.

PARTS INCLUDED:

CRUX SWRSU 38C Radio Replacement Wiring Interface - Fig
1

INSTALLATION DIAGRAM:

CRUX SWRSU 38C Radio Replacement Wiring Interface - Fig
2

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. CRUX SWRSU 38C Radio Replacement Wiring Interface - Fig
3

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:

SWC MODULE

RADIO BRAND:	DIP: 1	2	3	4
Atoto, Dual, Farenheit, Jensen, Pioneer	OFF	OFF	ON	ON
Power Acoustik, Soundstream	OFF	OFF	ON	ON
Blaupunkt, Most off-brand Radios	OFF	OFF	ON	ON
Alpine	OFF	OFF	OFF	OFF
Clarion	OFF	ON	ON	OFF
Kenwood	OFF	ON	ON	ON
JVC	OFF	ON	OFF	ON
Boss, Old Sony	OFF	ON	OFF	OFF
New Sony	OFF	OFF	ON	OFF

NOTE: For Auto, Blaupunkt, Dual, Farenheit, Power Acoustik, Soundstream, and most off-brand radios, check the aftermarket radio’s manual to see if the SWC buttons need to be programmed.
SUBARU STEERING WHEEL CONTROL DIP SWITCH SETTING:
There are 2 possible DIP switch settings for the Subaru SWC as follows. Try the one that matches your vehicle.
SWC MODULE

Subaru	DIP: 5	6	7	8
#1	ON	OFF	OFF	ON
#2	OFF	ON	OFF	ON

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, the “shield” does not need to be connected. CRUX SWRSU 38C Radio
Replacement Wiring Interface - Fig 5

VEHICLE APPLICATIONS:

SUBARU

NOTE: For non-amplified systems only.

http://www.cruxinterfacing.com

Crux Interfacing Solutions
Chatsworth, CA 91311
Phone: 818-609-9299
Fax: 818-996-8188
www.cruxinterfacing.com
rev.052821

Documents / Resources

| CRUX SWRSU-38C Radio Replacement Wiring Interface [pdf] User Manual
SWRSU-38C, Radio Replacement Wiring Interface, Wiring Interface, Radio Replacement, Interface
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