If I hold down the "next track" button on my steering column stalk in MP3 mode, nothing happens.

I'd like it to work the same as using the "next track" button on the front panel - IOW, press it for next track and hold it for fast-forward. In Tuner mode, the stalk works like the front panel, so it's counterintuitive that it doesn't do so in MP3 mode.

Perhaps the genuine Sony stalk has a separate control for fast-forward, in which case my preferred behavior might merely be a configurable option?

(BTW, for "next", also read "prev")