Hwncountryboy

I got no power to reverse light switch on transmission checked the relay and got no power there either I found the power going to the relays but that wire goes to a solenoid which ain't turning on unless I jump the solenoid then everything works but I'm not sure where the solenoid is getting power to switch on there's a wire but it's dead and can't see where it goes in the wiring harness any body have any ideas Thanks