Since I have a basic steering wheel without audio controls, and I've found those controls not only useful but necessary as I have only one functioning hand, I want to add a GT2 leather wrapped wheel with the controls. My questions are: 1) what tools do I need to release the airbag module from the wheel, and 2) even with a plug & play car... what other parts will I need? If I basically have to gut & rewire the column, then will it be more convenient to simply replace the entire column?