wiring door locks 06 freestar

I am trying to figure out the wiring for the remote door locks and have located the door pins and lock unlock wires all negitive based on my wiring diagrams.

the remote starter is a prostart  ct3371

in the diagram above it shows to cut and install a diod then then conect power with 3k resister then a second diod and door triger positive.

Is door triger positive, the remote positive door input?

I have a(-) negitive door input

   (+)  positive door input

 (-) unlock output

 ( -) lock out put

Is this the best way to connect this or am I not understanding the diagram?

I would think you would just use the negitive inputs to pulse the negitive pins

any help is appreciated thanks

I would like to use the door locks if possible to get rid of one remote.

Thanks maybe a little info would be helpfull Im a little stupid but I do know how to fix things and usually figure things out. Some day you might need some info about somthing some one else is more informed about thanks for your time.

thanks for the response

I have the wires located but am not sure whether I need the above wiring or can just conect the negitive pulse to the lock and lock wires

thanks

Thanks

Thats what I thought but couldent figure out  why the wiring diagram was included with  no explanation.