So a buddy of mine has been troubling shooting this 04 because it won't crank for a while now. I went ahead and took over the car and ripped everything out of the car besides the wiring harnass. There are 12 volts going to the starter itself however there is only .9 coming out of the wire going to the solenoid. Long story short I trouble shot and traced it down to relay number 4 under the steering wheel. Now here's the part that blows my mind. I pull that relay out and test it. It works just fine. So I shoot the wires going into the relay box for that relay. 12 volts where it needs to be and no volts where there shouldn't be. However as soon as I put the relay back in the two positives drop to .9 and the negative starts reading .9 . I have tried 9 different relays and 7 of them were known for a fact good relays and same thing. At first I was thinking maybe somehow the box was allowing the positive and negative to touch with a relay installed but I mean it's just a peice of plastic and it doesn't seem to be broken anywhere. Does anyone have any ideas as to why this happening? Also how do you get the wires out of the box? They seem to just be terminal ends pressed into the box but I can't just pull them out. I was also thinking maybe the main relay had a broken point in it, but it doesn't look like the main relays in my domestic cars so I'm just sort of confused right now. Thanks guys.
Disclaimer - I have been an aircraft mechanic and supervisor for many years so I'm not an idiot