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Audio system unavailable message after installing front light bar

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That's not correct. If you bought the front light bar, meaning the LED strip that goes in between the headlights and replaces the black strip that is normally there, then that LED strip is powered by 12v that is tapped in at the passenger side footwell connection, and if you got an older version of the wiring harness that comes with the light bar then it is known to interfere with the speaker working and can throw the error you are seeing.

If you bought a light bar that goes on the roof of your vehicle similar to the factory light bar on the Beast version of the CT then it could be 48v, but that doesn't interfere with your stereo, so again, I'm pretty sure you bought the item mentioned in this article:
Starlink Bumper Light Bar from Teslaunch

rs=w_1280.webp
I do have the light bar between the two headlights.
It does plug into the passenger foot wheel well area. I haven’t actually checked the voltage with a volt meter, but according to tesstudio website it’s 48V. But then again tesstudio seems to have several products on one product page and perhaps the 48V is referring to the light bar on the roof?

I dont think it’s an older version of the harness since I have not heard any of the humming/buzzing that others have reported.

Tesla Cybertruck Audio system unavailable message after installing front light bar IMG_1691
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TeslaKen

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Yeah those specs in that chart are for some roof mounted light bar in an aluminum shell with it looks like 82 individual elements. I agree their website can be confusing. Is this lightbar the only thing plugged into the passenger footwell or do you have other aftermarket items plugged in there as well?
 
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Yeah those specs in that chart are for some roof mounted light bar in an aluminum shell with it looks like 82 individual elements. I agree their website can be confusing. Is this lightbar the only thing plugged into the passenger footwell or do you have other aftermarket items plugged in there as well?
it’s just the light bar plugged in now. I bought a rear view mirror from tesstudio but haven’t installed yet.
 

TeslaKen

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it’s just the light bar plugged in now. I bought a rear view mirror from tesstudio but haven’t installed yet.
Well I guess you can give it some time then and see if that error goes away. Can you go into service mode and run the speaker test and see if you have sound coming out of that speaker in the pillar that I showed in my other video that gets cut off by some aftermarket harnesses?
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