Ok so the first is how do you disconnect the factory alarm?
and the sencond what is the difference between S4t2 Counterweights and S5

 

The counterweights are different, you can't mix s4t2 weights into an s5 engine. The only way you would be able to do it is if the s5 engine has s4 rotors. Same principle applies the other way around (s5t2 to s4t2)

As far as the alarm. Don't arm it???? It's part of the CPU, I am not 100% sure, but as far as I know there is not simple way of disarming it without removing wires...

 

what i mean is can you mix s5t2 with s4t2 i figured going from t2 to na is not cuz different rotors but from t2 to t2 and if you do mix them up what does it do. here is the reason i ask i have a s5 i did a conversion on i had both s5 and s4 turbo counter weights, i got the front counters mixed up and cant remember the motor starts and runs fun at all rpms so im assuming i got them right but i wanted to see what would happen if i mixed them up.

 

But s4tii and s5tii weigh different. And what would happen is ur engine would prolly vibrate like a **** and eventually break a bunch of ****.

 

If they were mixed, you would have massive vibration issues and soon a bad engine... You can mix na & t2 weights as long as they are the same series, you cannot mix s4 and s5 weights, PERIOD.