Hi,
I'm not sure if this is an OEM system or if you have something different. If it is OEM, some had a power amp built into the system. See the schematic below.
Power to the amp is provided by fuse 12 in the smart junction box under the right side of the dash. If you have this system, that is where I would start.
When you check the fuse, confirm there is power to and from it as well.
Here is a link you may find helpful:
https://www.2carpros.com/articles/how-to-check-a-car-fuse
Let me know what you find.
Take care,
Joe
See pics below. Pics 3 and 4 show fuse box location and which fuse to check.
Images (Click to make bigger)
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Sunday, September 25th, 2022 AT 8:38 PM