Alarm Siren Location? A3 8p1 3.2 2005

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Hi All,

Been lurking around here reading up all I could before purchasing a 2005 Audi A3.
Purchased a nice red 3 door 3.2 Quattro a couple of weeks ago and the car has been great.

Have an outstanding issue with the Alarm Siren and was wondering where the thing was?
From what I researched I believe it is accessible via the passenger side boot panel.

Before I go pulling things apart, can anyone confirm this for me?

Other than that the car has been great!

My current list of things done:

Haldex and DSG service + Spark plugs changed
Transmission mount rubber replaced
Some suspension bushings
CV gaiter replaced
All above done at a great local garage.

Sorted the following myself with the help of the posts here:
Passenger side heated mirror replaced
Driver side door lock mechanism replaced to fix the micro switch issue.

What left for me to do is:
Spare copy of the key and fob done.
Trace an intermittent humming noise I am getting when the climate control is on.
Fix the alarm siren.
Save some £2000K over the next year to cover a DSG or Timing Chain failure

Will gradually replace tyres, suspension, exhaust with aftermarket parts once they start to need replacing.

Car drives well and the 3.2 is fantastic.

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Well just took a peek behind the passenger side boot area. Took out the sub and had a look around nothing there apart from a vent.

Next place for me to check is behind the drivers side front wheel well, but if it is there I believe it is riveted in. I think I may have to do to a dealership to get them to fix this one