Harness +Hardwire +12 volt

I bought a Floor Mat that lights up form jcwhitney, now i need to hardwire it into my harness.

I opened up the panel under the steering wheel.. and i found the harness, now I need to connect the wires.

Does anyone know which color are the +12 volt that is accessory, it turns on when you put the car key into "ACC" position.

So, what are the colors of the +12 and the ground?

How do you/can you open up the harness to connect the wire?

Do you need to solder it?


Thanks in advance
~Anton

The easyest way I think is to take the radio out and use the wires off that.

I forgot to say the car is a 94 Prizm

yea...hes right its easiest to doit through the radio...but if you want...you can also set it up to a switch...ummm...i dont have it with me...but i bought a haynes repair manual....and i'll look it up for you....

you dont have to cut any wires to get to it...they have connectors that will do it for you...
http://www.grainger.com/images/products/1A075.JPG

OK, i think i need to attach it to the Black wire, and the negative to chasis.

will work on it today..

Couldnt get it to work in the harness, so i hooked it up to the cigarete lighter.
got shocked several times.. but now seems to be working fine

the little block, is it a converter/amplifier?
it is making high pitched noises though.. Is that good or bad?

My self amplified Sony CD player sounds half that loud..