Radio wiring diagram needed?

2020 KIA OPTIMA
70,000 MILES • 4 CYL • 2WD • AUTOMATIC
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GABRIEL LUNN
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I’m trying to install subs in my vehicle, more specifically I’m trying to install a line output converter at the moment, and I can’t find a wiring diagram anywhere for the radio.
May 29, 2024 at 7:06 PM
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STEVE W.
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It looks like there are 2 different systems used in that vehicle. The base level has just the 4 speakers and tweeters up front while the upgrade uses an amplifier with surround sound and a subwoofer built in. The attached are both of them. It looks like you could add the converter to the rear speakers in the 4 speaker system easily. The other system you would just as the new parts in place of the OE subwoofer.
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May 29, 2024 at 9:56 PM