Airbags are small pyrotechnical devices. Working with them requires specialist knowledge, unless you want it to go off in your face....
Do you plan to re-fit the airbag once the dash has been refinished, or do away with it completely?
If you have a steering wheel airbag then as Martin said, the SRS module will need to be told.
Or do you plan to remove both and fit a more attractive steering wheel? If so you can probably have the SRS module removed as well.
Morgan Park in Hamburg, Germany, know all about this, some of the UK dealers also.
