Axxess Interface RFASWC - Manual (Page 9)

* Note: Remember not all radios will have all these commands. Please
refer to the radios’ owners manual for specific commands recognized by
the radio.
For instance the next command to be mapped is the Volume Down
command. Let’s say you want the Mode button on your steering wheel
to be the Volume Down command. Hold down the Mode button till the
led lights up solid red, and then release it. Now your Mode button on the
steering wheel is Volume Down.
6. After the last button is programmed on your steering wheel (you do
not have to go through the whole list), hold down the Volume Up
button for at least 10 seconds then the led will go out.
Or
After the 18th button is programmed or skipped the led will go out and the
remapping is completed.
If for any reason after remapping the steering wheel controls you want to
go back to the original steering wheel control settings, follow these steps:
1. Within the first 20 seconds of turning the ignition on. Press and hold
down the original Volume Down button (not the Volume Down button
you just remapped) for at least 25 seconds.