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Old 06-04-2012, 01:29 AM   #11
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Join Date: Mar 2009
Location: Walnut Creek, CA
Posts: 4,078
My Ride: 325Ci, 325Cic, C300
Exactly that - piezo sirens. There are some labeled piezo buzzers, but I didn't give those a try. There are also several form factors available.

I'm sure if you ask, and had a few minutes to spare, they'd hook them up to a 12v source. Some of them were in sealed packages though.

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