This is the fourth year of inspections. Also I've been inspected in different states and provinces by DOT. As long the low air lights are coming on and break knobs pop out they don't care about the sound.
I have the same problem, but only when my truck is off. I take out the relay and sound goes off. Also my left, right and hazard lights are not working they won't flash and if the do it takes up 10-15 sec to blink only once and then another 10-15 sec to blink again I change relay but its still happening. Can i have some advise?