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DIY: Do It Yourself
Post here to share or improve your wrench turning skills! All BMW E46 DIY tips, tales, and projects discussed inside. Learn to work on your car and know the right BMW parts you will need!

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Old 05-03-2010, 12:24 PM   #21
bAby norAA
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i was just out doing this and it started to pour on me. so trying to do it quickly and i forgot to hold down the hood trigger so i thought mine wasnt working.

Gotta go back out when the rain subsides. great diy!
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Old 05-03-2010, 02:22 PM   #22
bAby norAA
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I was wrong, it wasnt just my hood button. For some reason my car will not make the Radio Shack buzzer beep. I connected it the exact same way you did to no avail. Does the car need to be programmed to have the lights flash in order for this mod to work?
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Old 05-03-2010, 07:57 PM   #23
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Originally Posted by bAby norAA View Post
I was wrong, it wasnt just my hood button. For some reason my car will not make the Radio Shack buzzer beep. I connected it the exact same way you did to no avail. Does the car need to be programmed to have the lights flash in order for this mod to work?
I am curious too. My lights are not programmed to flash and I couldn't get it to work either.
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Old 05-03-2010, 08:00 PM   #24
leechieh
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Yes i believe that the factory alarm or parking light flash feature has to be enabled, this is what allows the signal to be sent to the siren.
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Old 05-03-2010, 08:13 PM   #25
Hartman
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Yes i believe that the factory alarm or parking light flash feature has to be enabled, this is what allows the signal to be sent to the siren.
I knew it was too good to be true.
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Old 05-03-2010, 08:22 PM   #26
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i want to try this on my E90
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Old 05-03-2010, 08:34 PM   #27
tranceasia8
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Quote:
Originally Posted by bAby norAA View Post
I was wrong, it wasnt just my hood button. For some reason my car will not make the Radio Shack buzzer beep. I connected it the exact same way you did to no avail. Does the car need to be programmed to have the lights flash in order for this mod to work?
Quote:
Originally Posted by The451Kid View Post
I am curious too. My lights are not programmed to flash and I couldn't get it to work either.
Quote:
Originally Posted by Hartman View Post
I knew it was too good to be true.

I really dont know if it is limited to vehicles that are programed. I can call BMW and try to track that down for you guys.

I had mine programed to flash the lights awhile back at the dealer for $60 and it took about 15 minutes for them to do it.
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Old 05-03-2010, 09:06 PM   #28
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Yo when I did it, the piezo buzzer stays on and doesn't stop. I tried switching the connections from one to the other connections. It also had a constant buzz. Does switching to a different buzzer work? Or do we have to get the activation from the dealership first?
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Old 05-03-2010, 09:15 PM   #29
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did mine today, took all of 20min. I mounted my buzzer under the micro filter and my only complaint is that it could stand to be slightly louder, but ya cant beat $5
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Old 05-03-2010, 10:08 PM   #30
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Yo when I did it, the piezo buzzer stays on and doesn't stop. I tried switching the connections from one to the other connections. It also had a constant buzz. Does switching to a different buzzer work? Or do we have to get the activation from the dealership first?
what kind p/n buzzer did you use?
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Old 05-03-2010, 10:19 PM   #31
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Update...I was messing around with the buzzer today and decided to try 102dB Piezo Siren p/n 273-079

Check first post for quick video clip ^^^
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Old 05-03-2010, 10:31 PM   #32
l0stE46
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My buzzer is the 273-0060 model from radio shack.
3.0-28 VDC
Max current assumption of 5mA @ 12VDC
86dB min at 30cm/12VDC
resonant frequency: 3500 +_ 500Hz

It's an inch diameter with circles.
Looks like this:
http://www.radioshack.com/product/in...ductId=2062398
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Old 05-03-2010, 10:35 PM   #33
l0stE46
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did mine today, took all of 20min. I mounted my buzzer under the micro filter and my only complaint is that it could stand to be slightly louder, but ya cant beat $5
Do you have the light flashing activated when you lock and unlock your car?
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Old 05-03-2010, 10:37 PM   #34
tranceasia8
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Originally Posted by l0stE46 View Post
My buzzer is the 273-0060 model from radio shack.
3.0-28 VDC
Max current assumption of 5mA @ 12VDC
86dB min at 30cm/12VDC
resonant frequency: 3500 +_ 500Hz

It's an inch diameter with circles.
Looks like this:
http://www.radioshack.com/product/in...ductId=2062398
That buzzer should work just fine as long as it doesnt need a driver circuit.
ill check w/ the dealer to see if vehicles need to be programed to be compatible.
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Old 05-04-2010, 12:13 AM   #35
leechieh
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I did my install with a DEI 513T piezo, its about 120 db's and it is alot louder than the radioshak one, but it bumps the DIY up to about 12$
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Old 05-04-2010, 12:34 AM   #36
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could i possibly do this with a horn instead of a high-pitched beep? kinda like when a normal car is armed it would sound like the horn beeped.
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Old 05-04-2010, 01:31 PM   #37
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Quote:
Originally Posted by l0stE46 View Post
Do you have the light flashing activated when you lock and unlock your car?
Yes, my car was programed to have the lights flash

Quote:
Originally Posted by smoke96 View Post
could i possibly do this with a horn instead of a high-pitched beep? kinda like when a normal car is armed it would sound like the horn beeped.
I was thinking about this yesterday, in theory it should work but you would have to use a relay to control the ground circuit for the horn.



***NOTICE***

Also i noticed if I lock the doors and then open them from the inside or trigger the hood latch (simulating a break in), the buzzer would turn on and stay on until i hit the unlock button. This makes me think i can use a regular car alarm siren, this could actually work as a anti theft system!!!!
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Old 05-04-2010, 06:48 PM   #38
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i like this idea. just wondering what would happen if it got wet?
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Old 05-04-2010, 08:11 PM   #39
haurelio
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any success on those who's car is not programmed?
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Old 05-04-2010, 09:47 PM   #40
tranceasia8
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Quote:
Originally Posted by leechieh View Post
I did my install with a DEI 513T piezo, its about 120 db's and it is alot louder than the radioshak one, but it bumps the DIY up to about 12$
Thats pretty cool, I just stuck to what was at Radio Shack. To me $5-$15 is okay for messing around. OEM sirens can be found on Ebay around $90-100.

Quote:
Originally Posted by smoke96 View Post
could i possibly do this with a horn instead of a high-pitched beep? kinda like when a normal car is armed it would sound like the horn beeped.
Yes bahnburnerit is correct on that. I can be used but if you dont have a relay then it will just stay on.

Quote:
Originally Posted by nickpapa View Post
i like this idea. just wondering what would happen if it got wet?
You final location of the buzzer should effect it. Most can operate from -5 to 120 degrees so i would think it would be fine if it stayed dry.
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