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  #1  
Old 11-20-2019, 12:31 PM
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Any constant 12V power source in the trunk W124 Cabrio?

Either in the trunk or under the rear seat. Need it for the beeper on the remote keyless entry I'm installing. Would rather not run a wire all the way to the fuse box under the hood.

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  #2  
Old 11-20-2019, 03:13 PM
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The beep output from the keyless unit should be all the power the beeper needs.
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  #3  
Old 11-20-2019, 03:26 PM
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Quote:
Originally Posted by party View Post
The beep output from the keyless unit should be all the power the beeper needs.
The beep output is to ground so I need a constant 12V+ to the buzzer.
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  #4  
Old 11-20-2019, 03:36 PM
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That's ****ty. Most that I've seen put out 12V+ with sufficient amps to power a piezo buzzer. It's there a second light flash output you can use?
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  #5  
Old 11-20-2019, 03:57 PM
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Wiring diagram


The purple 10 pin goes to the parking lights and the pink 5 pin goes to the buzzer negative wire. Not using the horn or a relay.
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  #6  
Old 11-20-2019, 05:43 PM
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Any car of that generation will have an unswitched 12V+ connection to the automatic antenna.
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  #7  
Old 11-20-2019, 06:56 PM
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Thanks, I'll check.

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