CSI 300, 2000 Suzuki Swift

I am new to car installation, but I am trying to install a security alarm and door lock for my Suzuki 2000 swift ( I know that it's not worth to install one for my car, but i just wanna know how does my car work), but before I start installing the system, i was trying to find out all the necessary wires in the car.

At first, I can't find the 12V battery wire. I did some research for my car, and it said the battery wire should locate in the ignition switch harness. But I can't find it. Do I have to remove the wheel in order to find the ignition switch harness? What does it look like?

And I was looking at the installatino manual in the other day, and i was wondering how you connect the wire to the relay. Do you solder wires to the relay, or do i just use electrical tape to tape them?

heres a diagram to get you started
the ign harness, wires are really thick, 12-10 gauge. if youre not comfortable locating it w/o a trace, then take off the steering wheel shroud (assumin the key cyl is there) and trace it.

|       ITEM      |     WIRE COLOR     |POL|       WIRE LOCATION        |
|              12V|white               |+ |ignition harness            |
|          STARTER|RED / yellow          |+ |ignition harness            |
|        IGNITION|blue/black          |+ |ignition harness            |
|       POWER LOCK|pink               |- |drivers kick panel          |
|     POWER UNLOCK|pink/black          |- |drivers kick panel          |
| PARKING LIGHTS +|RED / yellow          |   |drivers kick panel          |
| PARKING LIGHTS -|green or RED / grn    |   |headlight switch            |
|     DOOR TRIGGER|BLACK/ red           |- |drivers kick panel          |
| TRUNK/HATCH PIN|BLACK / YELLOW        |- |at switch or light          |
|     HORN TRIGGER|blue/black          |- |steering column             |

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Houston,TX
"The two most common elements in the universe are H+ and stupidity" (Ellison).