94 t-bird add on remote start

i installed a omega rs-6 in my wifes aunts t-bird ( her husband had bought the rs years ago-now deceased) anyway i am having a problem getting three - pulses (lock unlock lock) to activate the rs. the factory remote does not have a aux on it.  the car has keyless entry i can pulse the wires on a ground and it will start do i have to add relays to make this work. i can get the - pulses from the lock button on the remote but not on unlock. the pass door takes two pulses to unlock is there a way to get around this. thanks

If you have Factory Keyless:

There is also a Unit available that can give you Optional Negative Pulse using your Factory Remotes

dxdenis02-i am using the drivers door for unlock but it seems to get a + first pulse and - second pulse 

mo 12v- if i hook the activation wire up it only needs one - pulse  it would start every time she unlocked the door