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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > BMW Coding > Door Lock beep / chirp mod how to



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      02-20-2013, 03:40 PM   #1
jofritz
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Door Lock beep / chirp mod how to

Can anyone tell me if they know of a tutorial on how to install a piezo type buzzer for the door lock and unlock to chirp? Thanks!
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      02-20-2013, 07:28 PM   #2
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It's not that simple. If you have a pre-09 (not 100% sure on the build dates) you are prewired for the alarm. You could then install the OEM alarm and code it to work. If you are after that year you are not prewired. The only option then is to get a product like the RemoteKey+ which emulates an alarm with the beep.
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      02-20-2013, 09:09 PM   #3
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hmm. ok i just figured there was a way because the e46 guys were able to do the same thing for about $5. Not looking to drop the amount of cash they want for a factory alarm. all i want is an audible lock confirmation.
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      02-21-2013, 12:36 PM   #4
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I was in the same boat. There doesn't seem to be any other option than the RemoteKey+ or factory alarm.
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      02-21-2013, 12:51 PM   #5
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That sucks. Seems like it shouldn't be that hard to tap into something in the wiring like the turn signals or something. But I'm no electrician.
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      02-22-2013, 04:44 AM   #6
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I have been looking into this as well and read the DIY

http://www.e90post.com/forums/showth...ight=Alarm+DIY

Dose anyone know if this can still be done without the factory radio?
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