Steering wheel controls/using as carpc...

[acslam]

I'm like 80% done planning the use of my touch pro as a carpc system that can move between my 3 vehicles with me. The one thing I'm a tad unclear on is......

Is there any kind of thing, say like a PAC adaptor, that can take factory steering wheel controls, and turn them into a bluetooth keyboard or controller of some kind?

I'm thinking it would be awesome to use the controls in my firebird to be able to accomplish very simple things, like media player track change and voice command activate, but I haven't seen anything like this in my searching.