So you can hack the exterior active sound and make it sound like a Ferrari. Add some subs and an amp for that exterior speaker...
I love the car but I find this exterior active sound (surely a first) a little bit funny. Why not just let it sound the way it sounds.
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Anyway it would be fun to hack (code) the pedestrian warning sound to something other than a howling sound (whatever that means), something like, "Watch out!!!" but funnier.
I think this thread will be entertaining.
Edit: Sounds great in the video (from inside) with the active sound disabled. Would love to hear side-by-side comparison of the exterior sound with and without active sound.