Last night, while navigating menus of the Quest's Bluetooth audio system, I came to realize that there's no means to switch between playing music and listening to a podcast through the van's audio or touchscreen interface. Doing so requires picking up your audio device and swapping between sources using its menus.
At least this is the case using my iPhone 4 and its iOS 5 operating system. Nissan acknowledges this in the Quest's owners manual by saying "...it may allow basic control for playing and skipping audio files using the AVRCP Bluetooth audio profile. All Bluetooth devices do not have the same level of control for AVRCP."
Following the "menu" button at the bottom of the screen led me here:
Obviously, the only option from this screen is to hit "play mode," which led me here:
Clearly, this isn't a road that's going to get me to a podast. There are no other options.
Is it the end of the world? No.
Is it confusing to sort out the first time one runs across it? A little bit.
*Last-minute addition:* Yes, I tried my USB cord, which is malfunctioning. I assume full control of the tracks, podcasts,etc are available this way. I'll report back when I have a new cord.
Josh Jacquot, Senior editor

bluejuke says:
12:13 PM, 01/31/12
bluetooth commands on the juke SUCKS maybe its a nissan thing, I gave up n just use my fone to dial #'s now instead of voice comands
agentorange says:
03:23 PM, 01/31/12
It is not just a Nissan thing. It is a global lack of standards for so many Bluetooth devices. The motor industry cannot be expected to keep up with the continual changes (I refuse to call them updates) that the electronics industry makes to their devices, especially when the inustry seems to be reluctant or just plain slow on issuing notice of their changes.