The reason one is black and square is because its for the premium sound system, i dont know if you mean that the wiring harness has 4 connectors, but i doubt it does, if one of your plugs isn't black and square you will need to return this kit for the non-premium one. If they do for some reason have 4 connectors you could just snip off the end that would go to the radio on both of them and just wire and soder it like that. Hope this helps
99 Tour SE Sport 24V
Cabernet Red
Xplod Head unit/Xplod 760W Amp/15" Rockford HE2
2 10" blue neon lights in footwells
Moonroof, Spoiler, Re-wired fogs to work right, 50w Xenon Fogs 80w Hyperwhite low's from midnightmoose
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