too much voltage after adding headlight relays

Well I tried the relay idea to the best of my knowledge I did 12 volts from the battery to terminal 30, grounded terminal 85 at the windshield wiper motor stud, terminal 86 used the blue wire coming out of the firewall ( top passenger side wire on the middle plug) I think it's the voltage return for the ignition switch at the factory splice. I ran the other 2 wires from the splice to terminal 87. When I turn the key to the run position and pull off the blue field wire I have the same voltage as the battery. But if I plug the field wire in it drops 2volts. I need to get this fixed over this weekend so any help is needed and greatly appreciated I'll try and troubleshoot and respond as quickly as possible.thanks for your patience also I know this has to be annoying to explain