I had to do some testing to determine how to install the unit. I needed a relay to drive my trunk solenoid. The gray green brown yellow & blue are two relays. I experimented to determine the normally open, normally closed & common terminals. Seems to work as advertised.

It was a gift to a friend

I am no wiring guru. I am a normal person who just works on their car. The included instructions were useless to me.

What ended up working for me, for just basic lock/unlock functionality using the "Keyless Entry" version (no alarm), was as follows on a 99 Tacoma. Wiring will work with 95-00 Tacoma.

1. Get wiring table from Commando Security or other website for my 99 Tacoma. Disconnect car battery.
2. Print out the diagram of different lock mechanisms from the Amazon listing
3. Apparently (figured out via trial and error), my truck works best with the "Negative Trigger", so we will be using that.
4. I was not going to use the parking lights / windows, so I first collected the wires on the IG unit that were not going to be used at all and tied them up and away so I can focus on the other cables. I tied up (not using) the following wires: Gray, Green, Pink (windows), Purple (Parking lights), Big Purple (trunk).
5. Remove the underpanel underneath the steering wheel (4 10mm bolts, 1 phillips screw), and kick panel (snap in, but requires you to open a couple of screws on the door sill). Remove hood latch cable from the main underpanel.
5. Using an automatic wire stripper, I spliced onto the White cable going up to the ignition (12V), and soldered this to the IG unit's red wire.
6. Stripped and joined the IG unit's Black, Blue, and Yellow/Black cables, and soldered that to a ground (I added a ground cable to an existing grounded screw in the kick panel area)
7. Following the wiring harness that comes from the driver side door, you can identify the harness with both the red/white cable and the red/yellow cable. This harness is in the kick panel area, not the immediate hood latch / fuse area.
8. Splice and solder the IG unit's Brown cable to the harness Red/White cable. Splice and solder the IG unit's Yellow wire to the harness Red/Yellow Cable
9. Ensure you insulate all splices.
10. Tuck away the unit into the kick panel area with Zip ties or the double-sided foam tape.
11. Test and confirm it is working before re-assembling the interior panels.

Bought this kit and 2 door lock actuators to install on 2006 F-350 2 door. Wiring diagrams included are confusing. Poor wording/identification.

Figure 2 on the instructions is what worked for me.
Actuators have blue and green wires.

Main Unit Yellow to actuator blue
Main Unit Brown to actuator green
Main Unit Red to Battery +
Main Unit Black to Ground
Main Unit Yellow/black and Main Unit Blue both to +12V
Main Unit Green and Main Unit Grey to Ground

Did not connect the parking lights option.

They work great so far.

Good product but instructions not so great