I wonder if anybody else have this problem.

Just moved to a new apartment on third floor (right next to busy street), and anytime a large truck or bus drives by, and system is off, I can hear subwoofer clicking On. The sub is one of those auto-signal-detecting type, and I'm assuming the vibration from large vehicle on the street causing sub to come on. The sub is sitting on carpet.

It is not a big problem. But if there is an easy solution, I might consider it.

Thanks.