Entune Audio Plus - tuning HD channels from steering wheel controls

I have read the manual until I'm blind, and tried everything I can, but I cannot figure out how to change HD channels from the steering wheel controls! Is it POSSIBLE??

 

Turn to the station you want. If it comes in HD, then it's HD. If it can't get strong enough signal or the signal is not broadcast in HD, then it won't play in HD. It will tell you on the screen if its picking it up in HD or not by displaying a yellow "HD"...

 

Are you talking about audio on the HD sub-channels? I think it has to already be a saved preset. Then you can use the up and down buttons.

 

Thanx Double - that's what I have figured out. Also, why can't you just tune up and down the band to find a channel from the steering wheel controls? Kinda defeats the safety aspect!