I have a 2006 macbook motherboard. I am working on a project and installing this in another case since the rest of it has been damaged.

I can successfully boot the macbook when i connect the keyboard ribbon cable and press power. I would like to boot this machine without using the keyboard. Anyone know how I can do this? I planned to solder a switch in place. I know on some of the later macbooks there are actually two pads on the motherboard you can touch that will power up the computer. This logic board does not have those two pads or the power symbol. I was wondering if anyone has an info.. Thank you.