[Themman1785]

Hello new to this site, trying to find a wiring diagram for 2015 ex with infinity system without nav can anyone help please. I’m going to hook the 4 door speakers and sub to aftermarket amp and want to connect 3 dash speakers to head unit but can’t figure the wires out

 

[Turbonut]

Don't know how much difference the Infinity system might be, but here's some info on the audio system:

Kia Optima: Audio - Body Electrical System - Kia Optima TF 2011-2022 Service Manual