A complete update:
The dongle works perfectly. All bike audio goes to my helmet.
When my phone is plugged into the iPod port, all sounds from the phone go through the bike and therefore to my headset. To include the phone's GPS commands, and iRadar audio alerts.
The phone is paired to my headset AS A PHONE ONLY. That feature is selectable via the Sena headset setup. Then the phone features (phone calls, voice commands for texting etc - which works flawlessly and easily using Siri on the iPhone) goes to the headset too.
On a side note, the Sena SMH10 works extremely well in my Shoei Neotec helmet. Cruising at 85 MPH, the caller can't tell I'm on a bike whatsoever.
Push the phone button on the Sena, say "send a message to my wife". I'd say what I want, sometimes a long message, and it transcribes perfectly.
When she responds, I say "read my last message". Then the text is read to me over the headset.
I'm having long text message conversations and never have to look at or touch the phone is huge!
Technology is great. In this case, while traveling across a very windy Kansas, the features and functionality of the bike and the Sena made the ride safe and more enjoyable.
'12 NESS Vision, #20, stage 1 w/D&D pipes + lots of Victory add ons. Lloyd's intake, filter, and PC-V w/Autotune. LONGMONT COLORADO
2013 Bushtec Entourage - Black
Wife rides a 2013 XCT, Black