flashlogic flrsch5 install 07 charger

I have a 07 hemi charger automatic and bought a flashlogic flrsch5 remote start for it with the optional t harness. I wired it up as per the schematic provided cutting the white yellow wire where it connects at the ignition switch (male end) of the t harness and then connecting pin 2 and 4 to the white Yello wire and purple wire respectively. So PURPLE / brown to white yellow and pink green to the purple wire. So that should be all I need to get it to work but to no avail. It does turn on the accessories and then nothing. I have tried another module and same issue as well as another harness. So here is the odd thing I disconnect the white yellow wire and it starts the car but the security module shuts it down. The car will throw an immobilizer code if I try to start with the white yellow connected making me think it's something missing on the module end. Just for curiosity I hooked the white yellow to the purple orange wire and no more immobilizer code but she shuts down shortly after starting and honks my horn once. So any advice? It is an ex police cruiser not sure is that makes any difference.