I'm having a problem with what I thought was a 100% mechanical bus
When I bought my bus, I thought it was 100% mechanical. On my way back home I ran into a problem with a screeching noise about every 10-15 minutes. I tracked the noise to a device mounted on the left side of the bus next to the drivers seat. It says Panasonic on it. Can someone help find out what this thing is used for?