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BMW 3-Series (E90 E92) Forum
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Adding only the chirp without prewire
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03-15-2018, 08:13 PM | #1 |
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Adding only the chirp without prewire
First post here. All the searches have referred to adding alarm system. I’m really not concerned with having the alarm, but would like to have the audible chirp upon lock/unlock. I have access to wiring diagrams and have found the siren gets it signal through the blinky mirror, which I do not have. I know I can find a way to wire in the alarm to the hazard switch, but would like to know if anyone has any other ideas as to adding it without the full alarm/coding install. Thanks 🤙
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03-19-2018, 01:23 PM | #2 | |
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Just reviewed some of the technical documentation and all signs point to this. Let me know if you discover otherwise, though! |
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03-19-2018, 05:57 PM | #3 |
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I figured as much, but I’m sure there are other who would want this. The factory siren is pretty cheap on eBay so I think I’ll order it and play with some wiring to see if I can’t figure a clean way to install it without the entire retrofit.
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