Owner's Manual

7
Version 2 Style SWI Harness Wire Description
Purple Loop: When intact, it provides 5 volts to the white wire’s circuit. In some instances the installation instructions will have you
manipulate this connection for specific applications. Leave as is unless vehicle specific instructions indicate otherwise.
Black (X 2): Ground wire. Connects to vehicle ground. In some cases it may be necessary to connect directly to the vehicle
chassis to secure a good ground. Additional ground is supplied for vehicle applications that require you to ground a wire in the
vehicle’s harness. Simply ground one of the black wires from the SWI interface and take the additional black wire and connect to the
vehicle’s wire that you are instructed to provide a ground to.
Blue: HVAC Data Output wire (used with version 4). This wire is only used for specific GM applications where the AC and
Fan controls were located in the steering wheel and were lost when the factory radio is disconnected. The SWI instructions will
indicate using Version 4 for these applications. Version 4 programming requires the Temp and Fan buttons to be programmed
before the radio control buttons (provided programming instructions will indicate the exact procedure).
White: Analog 5 volt Resistive Control wire (used with versions 3, 8, 9 and 11). This wire is used for connection to the
steering wheel control wire for most Honda, Toyota, Nissan applications along with non CAN bus Fords and Harley Davidson
motorcycles. Additional information regarding how to test discussed later (click here).
White/Black: Analog 5 volt Resistive Control wire with 560 Ohm Resistor wired inline (used with versions 3, 8, 9 and 11). This
eliminates the need to use a separate 560 Ohm resistor when instructed (Toyota applications for example). If you are using this wire
as a “Y” off of the white wire to connect to an additional vehicle wire, make sure to account for this resistor.
Red: Accessory 12 volt wire. Connects to accessory 12 volt circuit in vehicle. In some cases it may be necessary to wire to a
relay. Additional information on this discussed later.
Yellow: 12 volt Data Control wire (used with version 5). This wire is used for connection to the steering wheel control wire for
many BMW and Mini applications (non-CAN Bus). Additional information regarding how to test for this wire discussed later (click
here).
Orange: 5 volt Data Control wire (used with versions 6 and 7). Most commonly, this wire is used for connection to the radio
control wire for the rear controls in specific Ford applications allowing specific buttons to operate the aftermarket radio. In these
cases, you can use two SWI interfaces (one connected to the front control wire and one connected to the rear control wire) in
tandem so that the steering wheel controls and the rear seat controls can be retained. Radios that use the 3.5 mm jack for the
steering wheel control input will require a Y-Adapter to allow both SWI interface outputs to be connected into the single 3.5 mm
jack input on the radio. Additional information regarding how to test for this wire discussed later (click here).
Green: Analog 12 volt Resistive Control wire (used with versions 1 and 2). This wire is used for connection to the steering
wheel control wire for most GM applications along with the steering wheel control output wire from many of the PAC interfaces that
convert a data steering wheel control wire to an analog output (SWI-CAN, SWI-CAN2, OS-4, etc.). Additional information regarding
how to test for this wire discussed later (click here).
Brown Loop: When intact, it provides 560 ohms of resistance to the green wire’s circuit. In some instances the installation
instructions will have you manipulate this connection for specific vehicle applications. Leave as is unless vehicle specific instructions
indicate otherwise.