Hello everyone
My gf just bought Fiat 500 2008 1.2, and previous owner tried to replace typical steering wheel to multi functional steering, but the cabling has not been done
Can you pleas advise what cables are needed (airbag and horn are working) to complete the installation?
I do not need manual how to remove and put back steering wheel itself, only what cabling or other material/steps are needed.
One more question, is it possible to also operate with dash computer or just the radio?

Thank you for any advice

I'm not sure you can do it.

I think the wiring to the wheel contains more wires, although could just be more CanBUS signals.
This sort of question crops up regularly, I think it is impossible, unless someone can prove otherwise.
When the car is built, the body ECU is programmed with all the features of that car. With dealer software, or MultiECUscan, any of these functions can be disabled, and re-enabled again later (I've disabled my front foglamps, replaced with DRLs). But anything not originally on the car is not in the ECU. I do not think there is a way to add them.
If you really want the extra features, you'd need a full ECU swap. This would be both body and engine ECUs from a donor car of the right spec. This also involves keys and locks as the 'new' ECUs won't recognise your keys.
It is a lot of money, even more hassle. Leaning over to the radio might be easier.