If the alarm red light on your radio is on even though you removed the add-on alarm years ago, it is possible that the alarm system is still active and causing a drain on your battery. Here are a few things you can try to fix the issue:
- Check the wiring: Make sure that all of the wiring related to the alarm system has been properly disconnected. It's possible that some wiring may have been missed when the alarm was removed, which could be causing the issue.
- Check the fuse: The alarm system may have a dedicated fuse that is still active and causing a drain on the battery. Check the fuse panel for any fuses related to the alarm system and remove them if necessary.
- Disconnect the battery: If you're unable to locate the cause of the issue, you may need to disconnect the battery to stop the drain. Be sure to follow proper safety procedures when disconnecting the battery.
If these steps do not fix the issue, it is possible that there is a problem with the alarm system itself or with another component of the car. In this case, it is recommended to have a mechanic or dealership technician diagnose and repair the issue.
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