Upgrading Central locking to keyless entry

[Jamie-b]

Hi,
After a long search for a kit to convert my central locking to key less entry, that came with a flip key, i finally found one, then after a long wait i finally received it, however as its a universal kit, the instruction are pretty poor..
And by instructions i mean there are none.. however it does have 4 Diagrams..
One is just for windows automatically rolling up, lights flashing, shit like that.
Then there is 3, which im guessing only 1 is for my car,
They are labeled "Positive trigger, Negative Trigger, Positive and Negative Trigger"
Ive been told the supra is negative trigger?
I also need to know where the "Central locking system" is located, and what wires are for lock and unlock signal?
Here is a diagram that was supplied for negative trigger