Hey,
I'm having trouble with the fake alarm LED I installed in my car. It was a kit with two bulbs wired to a small circuit board. I installed it and everything was fine for several months. I have it so it comes on when I shut the car off. I also put in a switch to turn it off if I want. I did remove one of the bulbs and tied the wires together to keep the circuit. Now the bulb recently started blinking faster and faster. The odd time it will flash normally but eventually starts flashing faster again. I soldered and heat shrank all the connections, all of those still seem good. Would you say the circuit board is just crapping out?