Installing starter button, Which red wire is power? Options

[jgara962]

Installing a starter buttong inside the car, but there are three red wires coming out of the ignition connector - which is the hot feed that gets connected to the other spade terminal?

From the wiring diagram

15 - which also has a black wire coming out of the same terminal, both going to the fuse panel
30 - goes back to the starter
X - on the diagram it goes to a square with the number 49 in it (I have no idea what that stands for)

I already have the yellow wire from the solenoid connected and thought the power would be X, but I think I guessed wrong.

Thanks!!!

[lapuwali]

First, someone has their numbers screwed up. If 30 is battery power, it should have a red wire, not a black wire, attached to it. If it has a black wire, it's switched power, not battery power.

The way the circuit goes is red wire from battery + to ignition switch, black wire from ignition switch to many places that require switched power (including the coil), yellow wire to the starter. To have a starter button, a wire has to run from the switched power terminal to the starter button to the yellow wire for the starter. You don't have to disconnect either wire from the ignition switch, and if you DO disconnect the black wire from the switch, you'll get nothing, as you're now trying to run 100% of the switched power through the starter button, so you'll obviously not get anything if the button isn't pressed.

Connecting a momentary pushbutton IN PARALLEL across the black wire/yellow wire junction means you'll be able to use either the ignition switch OR the button to turn the starter. If you ONLY want the button to do the job, then disconnect the yellow wire from the ignition switch, and only have it connected to the starter button. If you want the starter button to operate even if the ignition is OFF, connect to the red wire instead of the black wire.

The red/switch/black sequence must remain in place undisturbed if the car is to work at all.