This is more of a 'does anyone else see this on their Aux screen'?
I have both a Rio-car and a Empeg-car running the same exact software versions (2.0b7 w/Hijack 151).
Put both into DC car mode in the house switch to Aux and I get 2 different screens. I have attached what I call the unusual Aux screen, it's a drawing since I can't get screen capture to work right now but explains it all the same.
I guess I'm wondering where this screen is coming from. The right hand of the pic shows what looks like a signal strength meter does act like such, starting at nothing then ramping up like the volume ramping does in player mode.

I should say there is nothing connected to either players and the strange screen appears on the Rio-car. On the Empeg-car the 'waiting ...' is on the bottom and there is nothing else on screen.