Chime location?
Hotshot
Joined: Jan 2004
Posts: 19,768
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From: St Louis
The chime is integrated into the GEM module.
The GEM doesn't have an input dedicated to activating the chime, but it would be fairly easy to use the key-in-ignition input plus a small external circuit (transistor, a resistor, a couple of diodes, or a relay) to implement a strategy to sound the alarm when one or more circuits are hot when the door is opened, assuming the door ajar switches all work correctly.
The GEM doesn't have an input dedicated to activating the chime, but it would be fairly easy to use the key-in-ignition input plus a small external circuit (transistor, a resistor, a couple of diodes, or a relay) to implement a strategy to sound the alarm when one or more circuits are hot when the door is opened, assuming the door ajar switches all work correctly.
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Senior User
Joined: Jan 2008
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The chime is integrated into the GEM module.
The GEM doesn't have an input dedicated to activating the chime, but it would be fairly easy to use the key-in-ignition input plus a small external circuit (transistor, a resistor, a couple of diodes, or a relay) to implement a strategy to sound the alarm when one or more circuits are hot when the door is opened, assuming the door ajar switches all work correctly.
The GEM doesn't have an input dedicated to activating the chime, but it would be fairly easy to use the key-in-ignition input plus a small external circuit (transistor, a resistor, a couple of diodes, or a relay) to implement a strategy to sound the alarm when one or more circuits are hot when the door is opened, assuming the door ajar switches all work correctly.
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Senior User
Joined: Jan 2008
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Thank you, PROJECTSHO. I finally got a plan. I am currently using a single pole switch to turn on the add-on device. I will replace it with a double pole. One continues to turn on the add-on device. The other connects GROUND to KEY-IN-IGNITION. No relay, no circuit board.
UPDATE: Project completed as planned. Works. For reference, the key-in-ignition circuit is [GEM---Key-In-Ignition Wire---Switch---Ground. The switch is the ignition tumbler itself. The key-in-ignition wire remains grounded while vehicle is operated.
UPDATE: Project completed as planned. Works. For reference, the key-in-ignition circuit is [GEM---Key-In-Ignition Wire---Switch---Ground. The switch is the ignition tumbler itself. The key-in-ignition wire remains grounded while vehicle is operated.
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