Hi. I've just started a new job driving an old not much loved '90 R series Mack. Awesome old girl but the indicators stay solidly on. Where the hell is the flasher unit on these trucks pleeeeeease? I've ripped half the dash apart and looked everywhere. All I have found is the indicator relay by following the clunk sound lol. She's a good truck but been messed with plenty so the flasher probably isnt where it was but I need a start point.