Just got a used 2003 A4 Sedan with Symphony II i believe.
All speakers are working fine on the rear doors top & bottom. But rear shelf speakers Sub & 1 other speaker (i'm assuming theres one?) are simply not working at all.
I've tried Fader all the way to the rear of course... I can't imagine it simply blown out, it produces absolutely no sound at all.

Can anyone give any tips or hints on how i could fix this problem maybe even myself? Not trying to go someplace get ripped off for 200 bucks for them to plug it in to the amp or something that simple.

Any help is appreciated

 

Fold the rear seats down and see if it's plugged in.

 

Where would this all be viewable, would i have to lift up the rear shelf to see any of this?
Going to give this a shot in the morning! Too late to see anything now

 

When the rear seats are folded. Looking underneath the rear deck you can see the speaker/sub is exposed.

 

I folded the seats back looked in there, theres the sub, can't see any connections at all sa to where it might be going wire-wise... I did see a light up red area with a wire plugging in, but i'm assuming thats the shelf break light.

I'm still stumped =/ I suppose i'll have to try and open up the shelf itself somehow

 

From: http://www.audiworld.com/tech/elec58.shtml
"2. REMOVE INTERIOR PANEL FROM REAR DECK. You must remove this panel because the speaker grilles do not come off, and you will not be able to get to the speakers otherwise. First you will need to remove the child seat anchors. Get a small flathead screwdriver to pry up the plastic covers. Next, use a socket wrench to remove the bolts. Next, you will need to pull the front up. It is held in place by a few plastic clips that go through the metal deck. Pull up on the front to free it. Next, you will notice that there is foam between the interior panel and the metal deck. This is now holding everything together. It is easiest to peel away the foam from the interior panel. Last, unplug the brake light. You will see the wires in the trunk. Lift the interior panel up a few inches as you pull it towards the front of the car. "

I removed all the plastic covers, then i'm not sure what bolts its referring too... I see 2 bolts underneath the sub area, but besides that nothing else really. Also found the plastic that holds down the shelf in the front, but feels like i'm going to break it by trying to lift it up. Any advice?