2004 Dodge Ram 1500 SLT door lock/unlock

Alright, I have a 04 Dodge Ram 1500 SLT Quad cab, I am installing a Python 1600xp remote start. The problem is that I can't get the door locks to work right. I know it is a single wire system. I also have the DEI 451m. I just can't get the dang thing to work....   So I ask all you install geniuses what it is that I am doing wrong or any ideas about what I can do. I have hooked the 451 as follows, Green to an 800 ohm resistor, Blue to a 340 ohm resistor. Nothing... Any help would be much appriciated.

Does the rig have factory security? If it does, lock is thru 1800ohms, and unlock is thru 450ohms. double pulse to unlock. First pulse disarm, second pulse unlock....try this.    Oh ya, it's a PURPLE / blue...same spot as the other wire.

No, just the factory remote keyless entry. And all the info that I have says it is a PURPLE / green wire with a neg trigger.

I am wondering if I have to cut the wire in order to get it to work. Hope thats not the case... Has a nice little function that I don't want to lose.

Did you look for the PURPLE / blue yet?  NO, you don't cut the wire....just tag on to it.

Will do that now.

O.k., I only have a PURPLE / Light blue wire as far as that goes, and there is a constant 5v on it. The PURPLE / green wire has 4.8V resting, 3.1V when locked, and 1.9V when unlocked.

the violet from the 451m needs to go to ground too if it's not already

I have it going to +12V constant....

must go to ground. the violet is has to be connected to whatever the desired output for the blue and green is. in your case the violet needs to be grounded.