Something that's sort of been bugging me for a while. The volume and next/previous buttons on the steering wheel work just fine with radio/aux, but the two circled buttons in the photo do absolutely nothing. I don't even know if my car ever was handsfree phone prepped, and I assume that's what they're for. But is there any way to use one of them as a mute button for instance? Either via recoding, or something hardware wise? Anything else fancy I can do with them?

