Hello guys, today my friend lost her car key so I had to hot wire her car for her. Just wanted to ask you guys what the blue wire is for? At the plug connected to the keyswitch, there's 5 wires.
1) red stripe
2) green stripe
3) yellow stripe
I connected wires 1, 2, 3 together and all the accessories and lights could turn on. Then I touched these wires together with the black to engage the starter and then can drive back. But I never once used the solid blue wire. what is it for?