How do I install an Immobiliser in my 1999?
 

So I blew my motor a couple months ago in my 99 and decided to vvt swap in an 01-05 overseas. It came with the wiring harness all attached so I decided to use the new one. I ordered an nb2 ECU with the key, ignition switch, and immobiliser. The problem I have is that I don't know where to put my immobiliser at all. My ignition switch also doesn't have a place to plug in the 2pin. I've been searching forums forever but I only find immobiliser bypasses and not installs for nb1. Can anyone help me out?