Did any 4th-gens have the option of volume/tuning controls for the audio system located on the steering wheel (e.g., center left side of wheel, opposite cruise control buttons)?

 

No.

You can add with some aftermarket head units.

 

........

 

i thought i've seen a 99 with them? some guy definately had a picture in his sig or something that had buttons that matched the cruise control buttons on the other side that controlled his radio. sorta like in buick rivieras in the late 90's had.

i wish i had that.

 

I've seen that as well, can't remember who it was though.