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s650ksa

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The main harness is FR3B 14E078, the wire assembly is WPT-977, it plugs into the main harness and gives you your four wire pigtail

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IMG_6021.webp
Ok ok 4 wire pigtail go where? Explain detail after this plz
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Stangerous

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Ok ok 4 wire pigtail go where? Explain detail after this plz
It’s been almost two years since I did this, but from what I remember those plug into each side of the cupholder for the LED lights. Then you’ll need the adaptor(picture attached) to plug into that harness, that gives you your wires to tap in to the footwell ambient light.

IMG_0390.webp
 

s650ksa

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It’s been almost two years since I did this, but from what I remember those plug into each side of the cupholder for the LED lights. Then you’ll need the adaptor(picture attached) to plug into that harness, that gives you your wires to tap in to the footwell ambient light.

IMG_0390.webp
Tap into footwell ambient lighting itself that's mean i need to cut and use t tap or posi?
And is this pigtail enough or short?

Screenshot_20260114_162302_Samsung Internet.webp
 
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Stangerous

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Tap into footwell ambient lighting itself that's mean i need to cut and use t tap or posi?
And is this pigtail enough or short?

Screenshot_20260114_162302_Samsung Internet.webp
I used line taps, once you get the tape off you can separate the wires enough to use them. Or yes, you can cut and splice there. You will need to add about 2’ of wire to reach the footwell.
 

s650ksa

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I used line taps, once you get the tape off you can separate the wires enough to use them. Or yes, you can cut and splice there. You will need to add about 2’ of wire to reach the footwell.
Last question the extra wire type or name because ther is a lot of wires in market to make extension
Sorry for bothering 🙏
 


Stangerous

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Last question the extra wire type or name because ther is a lot of wires in market to make extension
Sorry for bothering 🙏
I used 18ga wire. Not a bother, have fun modding your car man!
 

s650ksa

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Looks awesome. What modifications had to be needed to the Lincoln cup holder? The extra wires that you bought were long enough to reach the footwell light? I thought the s550 cup holders were way bigger and didn’t fit right on the s650
You were planning to install s550 did you make it?
Because s550 has extra plug under total 3 plus
And did you measure or compare it to s650 cupholder ?
 
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8915GT

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I made the custom plug and play harness and plugged in at the passenger footwell. I used the Lincoln corsair cupholder. it is not a perfect fit, it is a little wider than the OEM one. so there is about 1/16" over hang lip on the sides, not really noticeable.
Also, there is a lot of trimming of the center console to get it to fit properly. Not sure if I still would have done it knowing this and the total price later, lol. All said it done it costed $105. A little more than I thought since i bought everything separately. I can post pics later.

I used this guys post to order the parts for the plug and play harness.
https://www.mustang7g.com/forums/threads/s650-cupholder-ambient-lighting-diy-wiring-harness.168572/
 

andrewmitchell

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I made the custom plug and play harness and plugged in at the passenger footwell. I used the Lincoln corsair cupholder. it is not a perfect fit, it is a little wider than the OEM one. so there is about 1/16" over hang lip on the sides, not really noticeable.
Also, there is a lot of trimming of the center console to get it to fit properly. Not sure if I still would have done it knowing this and the total price later, lol. All said it done it costed $105. A little more than I thought since i bought everything separately. I can post pics later.

I used this guys post to order the parts for the plug and play harness.
https://www.mustang7g.com/forums/threads/s650-cupholder-ambient-lighting-diy-wiring-harness.168572/
Just did mine I followed the cut out like the previous post trimmed the nubs and peices around the center console with. Dremel and self tap screwed it shut then cut out that corner in the center console and it fit wire and all took my about 2 hours trimming wasn’t hard if you copy exactly what the previous ppl did as a outline i just gotta clean some plastic sticking out from the dremel

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andrewmitchell

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You were planning to install s550 did you make it?
Because s550 has extra plug under total 3 plus
And did you measure or compare it to s650 cupholder ?
I ordered a s550 cup holder it was a lot bigger but my cup holder had rgb at the at the top so I used Corsair wasn’t that bad of a install I did the wires one time did trimming another’ time

trimming took about 1 hour and a half if you used previous posts outlines
 

Fxvpr

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I just completed this as well. If you take the glove box out is it easy to access the passenger plug for the lights. Just thought I’d add this because there seemed to be a few questions about how to tap in. I chose to make my own plug and play harness
IMG_0461.webp
 

s650ksa

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I just completed this as well. If you take the glove box out is it easy to access the passenger plug for the lights. Just thought I’d add this because there seemed to be a few questions about how to tap in. I chose to make my own plug and play harness
IMG_0461.webp
I canceled the whole idea because it's need a harness and the cupholder itself doesn't fit 100%
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