What do you recommend?
I recommend turning down the volume on your cell phone and pairing it. Then see if your callers notice the echo. I tried that for a couple days before doing the update and I can say it's about the same. But I haven't tested it a ton.
I would recommend Sirius, I like the programming better than XM (I have both).
There has been success with the update, but if it works don't mess with it. I have heard conflicting reports "from pioneer" that the only thing they changed was the bluetooth. I don' t know if the ipod thing is wishful thinking. Seeing it before and after, I can live with either.
When in doubt, don't mess with it. Try it. If you notice the echo even with original pairing with the volume all the way down on the phone, then update it.