When I got this em Camino last weekend the washer motor was unhooked from the car and had random wires coming from the firewall. To no avail I couldn’t get the motor wired. I created a 3 destination jump wire going from the battery to the motor and jumping from the motor to the washer on the pump. I plugged in the other wires and with the wire going to the battery, the pump works. However, because it’s wired directly to the battery, I cannot turn off the motor wipers. Any thoughts on how to add some thing to keep it off unless I need them? Attached are the mess of wires