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Old 10-02-2012, 11:07 AM   #273
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Join Date: Oct 2008
Location: East Lansing, MI
Posts: 56
My Ride: 2005 BMW 325xi 5spd.
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I just tried this with the 'Shacks 273-079 (102dB siren - same device as the OP used in his videos). It sounded nice but there was one problem which is why I took it out:

Upon locking the car, 7 times out of 10, the siren would make a half-chirp instead of its full chirp, which sounded sad and tasteless. Its like the siren wasn't receiving the full signal to make a "chirp", so it made a "chi.." instead.

Do other people experience this and are too ashamed to admit that this happens or am I amongst the minority?

Before you ask:

- Yes, I'm pre-wired for alarm, and I tapped into the pre-wiring harness
- Yes, I activated DWA (the alarm function), clown nose blinking, and lock/unlock lights-flashing using my coding computer with NCS Expert
- Yes, I was doing everything correctly
- Yes, I did have a good connection from the siren to the harness, because the unlock chirping worked perfectly.

Any ideas?
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Last edited by Dahmwern; 10-02-2012 at 11:08 AM.
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