i'm just going over some stuff on my recently purchased 67 coupe 289 automatic and replacing little parts here and there for peace of mind and came across the solenoid. it looks old and im sure it works fine. the car starts and runs fine but i noticed this black wire that was tucked away near it. its crumbling apart and looks like it hasn't been being used. i'm assuming it goes into the solenoid but there isn't a connection for it. i look at other pictures online and there is two connections. mine just has the one on the right for the red wire.. so.. do i need it? solenoids i look to order online all have the two connections. if i get one, does this wire plug to it?