OEM Quad to OEM Projector Upgrade

DoughRat19

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So I have a 2019 Classic with the black quads and I just picked up some black projectors pretty cheap locally. They are the discontinued version that are all black (no chrome around the projector). I’ve been doing some research and I saw that some people swap out the front end wiring harness for the projector version and that was the route I was gonna take (OEM harness is cheaper than a retroshop conversion harness and it would have ALL of the wiring for the projectors). Unfortunately like many things these day, the harness I need is on back order with no ETA of when it would be available.

I then decided to make my own harness and include the missing wiring that most if not all of the conversion harness you can buy online are missing. Basically each projector headlight has 9 wires where as each quad headlight has 6 wires. So I was missing 3 wires on the truck side for both lights. Fortunately I got lucky and confirmed I have the missing wiring in the large connector under the fuse box, they just terminate there. I made a harness to run the missing wiring to the headlight locations and I incorporated those wires into my conversion harness. The three missing wires for each headlight are: High Beam Headlight Relay Control, DRL Lamp Driver, Front Lighting Fault Sense. Since these are missing on the truck side, any harness you buy for this conversion will not incorporate that wiring.

Here are some photos of the process. I took apart the truck to get my measurements for the harness.

Also, big shout out to @Jimmy07! I got most of my info from a post he did on another forum.
 

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Last edited:

DoughRat19

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2019 Classic
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Hemi 5.7
Parts List:

Projector Side:
1719105-1 - Female Projector Connector x2
964274-2 - 1.6 Female Terminals x12
964286-2 - 2.8 Female Terminals x6
964972-1 - 1.6 Seals x12
963294-1 - 2.8 Seals x6
963531-1 - 1.6 Plugs x4
828922-1 - 2.8 Plugs x6

Truck Harness Side:
15326813 - Male Quad Connector x6 (I used two for the wiring I had to extend from under the fuse box)
15326268-L - Male Terminals x18 (I used 6 for the wiring I had to extend from under the fuse box.
15326808 - Female Quad Connector x2 (used for the wiring I had to extend from under the fuse box.
15326264 - Female Terminals x6 (used for the wiring I had to extend from under the fuse box.
15366021 - Seals x36 (I used 12 for the wiring I had to extend from under the fuse box.

For the wiring, I ordered a 10 pack of 25' each from here:

For the harness for the missing wiring (if you confirm you have the wiring in the Connector under the Fuse Box), for my 2019 1500 they were positions 7, 8, 19, 23, 24, and 32 per this diagram but that could vary depending on year and trim:


To extend the 6 wires from under the fuse box (once you confirm you have them), I used the following:

7116-4102-02 - Female Terminals x5
7158-3374-90 - Seal x5
7116-4110-02 - Female Terminal x1
7158-3112-70 - Seal x1

Here is a diagram/pinout of the Projector connectors:

Here are diagrams/pinouts of the quad connectors:

After I installed everything, these are the alfaobd settings I changed and I haven't had a single issue yet:

CBC Features: Quad Headlamps Enable - No

CBC Features: Bi Xenon Headlamps Enabled - Yes

CBC Features: LED Front Turn Lamps Present - Yes

CBC Features: LED Front Park/Marker Lamps Present - Yes

CBC Config I/O Usage: Connector F Pin 5: Fog Lam Rear Left/High Beam Shutter - Left High Beam Shutter

CBC Config I/O Usage: Connector E Pin 39: Fog Lamp Rear Right/High Beam Shutter - Right High Beam Shutter

CBC Config I/O: Connector E Pin 39/Connector F Pin 5: Rear Fog Lamps Output Present - Yes

CBC Config I/O: Connector D Pin 1: Left High Beam Feed - AUX High Beam

CBC Config I/O: Connector A Pin 2: Right High Beam Feed/Right Park Lamp Usage - AUX High Beam
 
Last edited:

Kennyc2680

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Barre, VT
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Those look great, Lots of excellent info as well.

I am sure you have been asked, Any interest in selling the black quads?
 

Ram_Silver_Bullet

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Iowa
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Cool info! Dummy question, how much splicing is needed to do something like this on mine? I have a 15 with factory quads, and am installing oem projectors. Would you be willing to sell me a pair done up? I guess I’m not sure how much I’m getting into
 
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