Same issue - did you resolve it?
Hi Crazyams -
We recently bought a used 2011 3170ds, and I've come across the same issue that you describe -- a couple speakers above the couch/table that don't seem to be hooked up to anything. Also have the bad speakers in the kidszone that appear to be the only ones hooked up to the stereo located there.
Did you ever find a way to control the overhead speakers? Are they actually hooked up to something?
I realize your posts are a few years old, but it's a new problem for me so I thought I would bump it to see if you had resolved it or anyone else had some insight.