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2018 kia optima s
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  1. 4G (2011+) Optima
    I have a 2018 Kia optima s series that I'm trying to hook up in aftermarket amp in with a LOC, but don't know the wiring and color codes for the radio it's a 6-inch radio with six house speakers no extra amp or CD player.. I didn't know the wiring color codes and which ones are positive and...
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