Our new Dodge 3500 Dually was a great deal, but it didn’t come with power locks or windows. Getting Hudson in and out of a car without power locks is a chore so I decided to buy some universal power door actuators and install them myself. Total cost was under $30 dollars and now our truck has remote entry!
Here’s the kit I used (amazon affiliate link):
https://amzn.to/2nF2jw7
The switch I connected to the brown and white wires:
https://amzn.to/2mIJqsV
A couple of notes if you’re installing a similar system on your own Dodge truck:
I had to reverse the wires for the front doors because the motors were “pushing” to lock. Just swap blue and green. The parking light wires were hidden under the fuse box in the engine compartment on the driver side. Attach your purple wires to the “white and yellow” and “white and gray” wires that come out of the blue connector (there’s 4 different white and yellow wires).