Installed some leds in the lower bumper openings of my 2013 M3 Sky.
I used an auto relay that is currently using the low beams as the trigger to turn the LEDs on. However, I would like to have them on all the time when the ignition is on. If I could somehow hook up two triggers (one from low and one from high beam), then that would solve my problem. But that seems to be a complicated process involving two relays and a diode. Even then, the issue is when high beams are used, both low and high are on at the same time, which could cause a short.
I have tried various wires in the engine bay fuse box to find an IGN only wire, but I am not having any luck. Spare slots and even the fuses get constant power.
Also, I do not want to run a trigger wire from the engine bay into the cabin and have to deal with getting through the firewall.
Has anyone found an IGN wire in the engine bay, hopefully without having to tear apart a major wire harness or anything?
Thanks in advance.