2011 lancer fast key

Hi I have a 2011 lancer gts with fast key. I have Installed a viper 5904 using flcan Using D2D, so the viper arms and disarms off the factory remote. I also want to be able to remote start off the factory remote as well. I know that the input activation wire needs to be wired for this to happen. If I wire the input activation to the cars lock wire I can remote start the vehicle using the lock switch in the vehicle but not off the factory remote. If I wire the input activation to the vipers lockout put and I arm the system twice from the viper remote it starts but not from the factory remote. Alittle guidance would be greatly appreciated.

Use the factory door lock motor wire and a SPDT relay. From my research, on readyremote.com, I found the factory door lock motor wire is Red, 5-Wire, dash fuse box, white 19 pin plug, pin 6. Connect the relay as follows: 85 & 87: Ground 86: Red, factory door lock motor wire 87a: N/A 30: H2/21 WHITE/ Blue, remote start activation input Program your activation pulses as you desire. This will activate the remote start from the factory remote or the door lock switch the programmed amount of pulses that are programmed.I drink current, eat ohms, and bleed voltage