Had this happen to my 2010 Traverse.
Most likely NOT water related. That is-- if the door connectors are nice and dry.
Im in Southern California. Not much water here.
Some months ago- my speakers suddenly began to have issues.
Noticed it when my Onstar was barely audible. Only the tweeter made noise (drivers side)...
So over a few days- I started to lose speakers.
Driver front, then pass front, then rear left, rear right.... all within a couple of days.
I checked all connectors-- dry.
I removed radio- reseated connector.... nothing.
So I thought the radio had failed--- since it was all speakers. (except the tweeters)
I contacted a refurbished radio seller on ebay--- and he said to 1st check signal at speakers wire connection.
So I went home- and was about to start digging into it--- when some of the speakers were working.
A little more research online--- and I saw post about the speakers working above 85 degrees.
WOW!!!!! yes-- my speakers began to work on an afternoon where the temps outside were near 85-- and inside the cabin was warm.
They were onto something.
Cold mornings--- no sound.
later in day- 85+ sound.
So I ended up ordering new speakers from crutchfield and put them in. Now have sound.
Was not radio, was not wiring, was not water intrusion. just Old speakers.
2010 FWD LT1-Gold Mist Metallic- seats 8
Build Date- July 31, 2009-2nd day of Spring Hill 2010 production.
2013 Equinox 3.6L 83,000
2010 Traverse 3.6L 148,000
2003 Trailblazer 4.2L 181,500
Last edited by rbarrios; 05-04-2018 at 12:14 PM.