XR4Tim

They're in the same spot as on the S models, but the intercoolers prevent access. You have to remove the bumper cover to get to them on the Turbo. The good news is that once the bumper is off, they are very easy to remove and install.

CarreraCup03

one of my horns went our on my 2005 CTT. I replaced both with the Hella Supertones. I bent the mounts they came with, and they fit in the stock location. I also cut the plugs on the factory harness, and lengthened the wires. I did have to take off the front bumper.

They came out great, and I expect these to last for a long time. pretty loud to.

nabuhodonosaras

Thants a lot

Todd Simons

Does anyone know where the horns are on a 2013 Panamera and how to access them?

deekay911

Might want to try the panamera forum....

125shifter

Do you need to use the relay that comes with the Hella Supertones or just connect straight to existing wiring?

wilfred

Replaced both horns on my 2006 Titanium S and found it easiest to stick a pocket screwdriver at the red arrow then wiggle and pry at the same time. (Thank you XR Tim for the picture.)

I also found it easier to turn wheel out then pull out liner. Stick a small camping light inside helps too. The first one took 30-45 minutes but the second one took me like 10 minutes.
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TRINITONY

hmmm....don't even know if mine work. Will have to try it tomorrow...

Brainz

Do yourself a favor and buy one of these:
And squirt some silicon spray on there to loosen up dirt that may have lodged in the gap. Then give the connector a squeeze "closed" to break/loosen the seal, and then use the tool above to pull it apart. Those connectors are all over the car and can be stubborn without the right tool.