So here are the resistances coming from my steering wheel:

Volume Up 1270 ohms
Volume Down 294 ohms
Mute 823 ohms
Seek Up 715 ohms
Seek Down 1180 ohms
Preset 9350 ohms

Can anyone suggest what to do next. Should I hook up to the tuner module and use the Buttons Codes display function, do I need to adjust the resistor values (which may mean taking apart the steering wheel -rather not) or are there other options. Or is it just not possible.