Here are the 300-level paddle installation instructions from my friend/mechanic; he's assuming this is being read by a competent wrench, i.e. they're wildly too brief for the likes of me--your mileage may vary.
1. Remove steering wheel center cover which contains the airbag
2. Unplug paddles
3. Unscrew paddles
4. Remove paddle retaining pin
5. Detach paddle from switch
6. Install new paddles in reverse order
My favorite part stems from the biblical levels of presumed skill in steps #1 and #6.
Here's another view of the titanium colored paddles installed so you can contrast and decide black vs. metal as well as a pic just unpacked.