Hey, you have no idea of what you're doing. Here's a picture that explains it all.
and DON'T take your wiring from the ignition barrel, it'll be haggard. Get power from points from the Corolla loom much closer to where your SR wiring runs from.
and aside from asking there are multimeters and test lights you can use and even wiring diagrams which are available everywhere.
Put fuses in. I was too lazy to draw it in the diag.