how to add an dummy alarm led to my car and make it flash only when ignition is off?
i’ve tried connecting the dummy led to the existing alarm led on the dashboard but although the existing led switches off when the ignition is on the dummy led keeps on flashing.
i’ve even connected it straight to the existing alarm led bulb but it still won’t switch off when i start the ignition.
ps: the reason i’m adding another led is that I have a ford focus and thought an alarm led on the insided of the door where on a normal car the lock pin would be would look cool.
This can be done with a SPDT relay. It’s much too difficult to explain here. Contact me and I’ll have it drawn out for you.
Fake LED car alarm installation