I’m sure this has been said before but I listen to “what do you listen to in your garage” on the H.A.M.B radio
The voices in my head. That have some really good ideas! (and a lot of really bad ones) The real answer is that I mostly listen to myself grumbling about whatever I'm doing. It's a lot like Vice Grip Garage, but without the camera and less entertaining.
Tons of Beach Boys, Jan and Dean and other California hot rod and Surf music. This time of year I'll also listen to the Cincinnati Reds on radio while wrenching.