More than likely this issue is caused because the aftermarket radio has speaker wires on different circuits than the OEM radio.
Did the radio come with a connector kit built for your exact vehicle?
Basically, we need to find out what we have coming out of the radio to the speakers.
I am attaching the wiring diagrams below but here is a guide that will help with this.
https://www.2carpros.com/articles/how-to-check-wiring
I would suggest we start with this, but it appears there is no amp on this radio circuit.
It appears this was part of the Audio control module which is basically the radio.
This is what I suspect the issue is. The aftermarket radio is most likely just a radio and does not have the integrated module as part of it.
Let's start with this and go from there.
Thanks
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Tuesday, April 12th, 2022 AT 8:07 PM