Extending wiring harness?

[02S281]

Has anyone ever extended their wiring harness on a 99-04 mustang? If so where would you find the right gauge wires to use or is there anything needed to specifically know when doing this?

Should it not even be done?

Thanks.

 

[Wicked One]

I believe the wiring is 18ga. I used a 9 conductor 18ga to extend mine. You need solder and heat shrink and write down the colors you use. I hard solder splices. They solder and heat shrink all in one shot.

Let me know what you need. I will give you the wire. Or give me the harness and I will extend it.

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[1990_LX]

Please no butt connectors or the dreaded twist and tape method. lol Just do a little bit at a time and double check everyhting as you go and you'll be fine.