Front Speaker Signal Path for Amp Issue?

Yep, there are many wires to the radio system. here is a guide to help you test the connections and the radio wiring diagrams in the images below:

https://www.2carpros.com/articles/how-to-check-wiring

Check out the images (below). Please let us know if you need anything else to get the problem fixed.

Wow, that's a lot. I have the standard non-Bose system. I see that I need that R/B wire that's direct to the passenger side front speakers, I believe I spliced into that as I found where that lead into the door jamb, but the issue is acting like I taped into maybe the RR signal wires. Do you have anything that shows which wire is which on the Molex connectors in the respective kick panels of the passenger and driver side?

The blue/silver is the output wire from my amp and the pink cable is for the input to the amp.

Also, I completely forgot to mention, I have a 2023 Kia K5 but there was no option for that in the drop-down menu. Standard audio, non-Bose system.

Thanks for that, I added the K5 model to the list. Which connector view do you need, and I will try to find it for you, what does it plug into?

I'm trying to look at the Molex panels that are in the driver and passenger kick panels. The wiring from the radio leads into then but each connector has other things as well so there's not just the "audio" wires.

Okay, do you have any questions about the wiring diagrams or? I am not sure what to do to help you.

Not sure why it's turned sideways, the right side of the image is the bottom of the car/floor. These are the panels in the passenger kick panel. Do you have anything that shows this layout and which wire does what? I need to find the wire that is coming from the radio that sends signal to the speaker on that side.

You can see the posi tap I connected as it's on the red/blue (-/+) but it seems as if that pair sends the Rear speaker signal because when I fade the sound forward there's nothing and when I fade it to the back, there's sound in the front speakers.

They don't give us wiring diagrams like that, only individual systems. I would use the wiring diagrams above and see if you can find the wiring for the radio speakers, they should be together in the connector.

Since those above are for the K900, do you have those diagrams for a non-Bose (6 speakers) K5? For example, in the K5 the passenger front wires are red and blue, and the diagram above has subs, surround etc., for the upgraded sound package.

Sure, here are the basic radio wiring diagrams. Check out the images (below). Please let us know what you find.