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SWC Input Operation
The built-in SWC Interface is compatible with PAC steering wheel control modules.
The PAC SWI-RC is recommended. A third-party adapter must be used in order for
the XDCPA73W to be compatible with any steering wheel controls. The following
controls are available for most vehicles.
1. Preset Up/Down 4. Seek/Track Down (-) 7. Volume Down (-) 10. BT End
2. Mode 5. Mute 8. Band
3. Seek/Track Up (+) 6. Volume Up (+) 9. BT Talk
PAC SWI-RC Installation Hints
1. Set "Radio Select Switch". Set the SWI-RC to position 7 - "Pioneer/Other/Sony".
2. To program, use the Pioneer/Sony/Other radio function mapping order for DUAL units.
3. When programming the SWI-RC, if a function is not supported (or not desired), then the
function MUST be skipped as per the PAC SWI-RC instructions.
4. The SWC function MUST be programmed in the correct order per the PAC SWI-RC radio
function mapping order instructions.
Function
Order
Function
Mapping
SWI-RC (3.3VDC Reference)
Center Pin (Ring)
Voltage
(Function Select)
Tip Pin Voltage
1 Preset Up/Down L 0.0V 1.54/1.81
2 Mode H 3.3V 0.6
3 Seek + / Track + H 3.3v 1.54
4 Seek - / Track - H 3.3v 1.81
5 Mute H 3.3v 1.01
6 Volume + H 3.3v 2.07
7 Volume - H 3.3v 2.32
8 Band H 3.3v 2.73
9 BT Talk L 0.0V 0.60
10 BT End L 0.0V 1.01
Note: Not all OE steering wheel functions may be supported by the XDCPA73W.
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