Looking for help figuring out why my flashers and hazards don't work. I would love to find a wiring diagram if possible too. I'm not even sure where to start testing for power - do I start in steering column switch? Relay? Fuse panel? My headlights, high beams, markers and brake lights all function - so I guess every bulb technically has power. I'm not sure how flashers and hazards integrate in the system but I don't have either working. The flasher relay behind radio wasn't hooked up, so I plugged it back in when I pulled my radio. Today I was poking around and found the flasher switch only had the upper 2-wire plug connected and the big lower connector was unplugged, so I plugged it in. Still not working. I did find two things in dash that I don't know what they are. One is this black box that was under the dash - a relay of some sort? Has no markings and was bolted left of steering column and is kinda the only protruding object under the dash. Kinda weird placement IMO (detached and not where installed in my pic) any clues to what it is? Also found one connector next to the headlight and hazard switches (middle of pic). Nothing connected to it and nothing within reach, actually everything inside dash has its connector except the EGR light and the radio. Anyone know what they have connected here?