Seems like when I leave in the morning or when I park, I hear this sound coming from the trunk area.
Sort of like a tank full of liquid that's swaying back and forth

I have a 2011, but I also heard the same from a used 2009 I tested a while ago

Is this normal or is there an issue?

 

This is normal, it's the gas (fish) tank.

 

Just found a whole thread on it
plastic tanks lead to sloshing friggin aquarium noises

 

funniest thing, Today i emptied out my whole trunk.
I had zipper bag full of my armorall etc, and 2 jugs of Oil, that i had in my previous car.
Thought it was that. So i emptied it out, nd i realized it continued and it was in the rear.

Put the 2 together and i figured out the tank. Its pretty annoying tho if the music isnt up

 

I took the car to the dealer and the service writer said I must be hearing things. Yeah, right. No help there.

 

did you read the thread? yea no? no help there...

 

crap that what that sound is. i have been wondering since i bought the car lol