Fiamm trumpet horn compressor location

[Capt. Tom]

I have a 2013 31’ Tiara Open and the trumpet horn on the hardtop sounds like a sick duck. I am looking to replace it, but I don’t see where the small compressor is located. I have emailed Tiara, but have not heard back from them. I’m not sure if it’s in the hardtop itself, but I don’t want to remove upholstery if I don’t have to. My plan is to replace it with a 12 volt electric horn in lieu of the compressor.
Any information is much appreciated,
Tom