Depends on the Model Keyless Entry & your Mechanical / Electronic skills & tools.
There are a few Aftermarket Keyless Entry Units that have built in Relays that gives the ability to do Positive, Negative & 5 wire Reversal Locks ( which is needed on this truck ).
If you buy a cheapie Unit that only has Negative Door Lock Outputs, then you will need to add Relays.
| Constant 12 volts | RED & PINK/BLACK | IGNITION SWITCH HARNESS |
| Ignition 12 volts | D BLUE | IGNITION SWITCH HARNESS |
| Starter | YELLOW | IGNITION SWITCH HARNESS |
| Dome Light | YELLOW (-) | 26 PIN CONNECTOR BEHIND DRIVER DASH |
| Trunk Pin Switch | N/A | |
| Parking Lamp | BLACK / YELLOW (+) | 74 PIN CONNECTOR BEHIND DRIVER DASH |
| Power Lock | ORANGE / VIOLET | 16 PIN CONNECTOR IN DR. |
| Power Unlock | PINK/VIOLET | KICK PANEL |
Reversal Rest At Ground Door Locks
| Accessories |
| Window Up | D\ L BLUE P\ BROWN / WHITE @ MAIN SWITCH | |
| Window Down | R/ WHITE S/ VIOLET/WHITE | |
| Ign Key Warn | L BLUE (-) | IGNITION SWITCH HARNESS |
| Trunk Release | N/A | |
| OEM Horn | BLACK/ RED (-) | 74 PIN CONNECTOR BEHIND DRIVER DASH |
| Headlights | L GREEN (-) | AT HEADLIGHT SWITCH |
| OEM Alarm Arm | N/A | |
| OEM Alarm Disarm | L GREEN/ ORANGE (-) | IN PIN 8 OF A 16 PIN CONN DR.KICK * |
Reversal Rest At Ground Power Window Circuit
* OEM DISARM* Connector Located In Body Harness Side Of Drivers Door Harness To Disarm Ground Thru A 1565 Ohm Resistor.
| Remote Start |
| Tach Signal | BLACK/ GRAY | AT POWERTRAIN CONTROL MODULE * |
| Ignition #2 | BLACK/ ORANGE | IGNITION SWITCH HARNESS |
| Ignition #3 | N/A | |
| Accessory | BLACK/ WHITE | IGNITION SWITCH HARNESS |
| Neutral Safety | BLACK/ WHITE (-) | AT SWITCH ON TRANSMISSION OR PCM * |
| Brake Light | WHITE/ TAN (+) | AT SWITCH ABOVE BRAKE PEDAL |
| Reverse Light | VIOLET/BLACK (+) | AT SWITCH ON TRANSMISSION |
| Rear Window Defrost | N/A | |
* Power Train Control Module (PCM) Is Located On Passenger Rear Of Engine On Firewall. BLACK/ GRAY On 8.0L Engine Is 2 Cylinder Signal.(From Installer Tach Wire GRAY/BLACK) Diesel Glow Plug Wire Is ORANGE / BLACK At PCM. Can Also Be Found At 74 Pin Connector Behind Instrument Cluster.
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MO
Don't Learn from Others Mistakes
You Might Be the One That Knows.
If you can unplug the molox door boot and pull the door lock wirer inside the truck it will be easy to work on that way