I have had the g13 installed in My Tacoma for about 6 months and it's worked great but recently I lost audio to my factory speakers. My powered subwoofer still receives audio but after checking wiring, fuses, factory wiping, adjusting settings including the amp fader, and numerous resets, I cannot get any audio from the factory speakers.

@BertK
Hello.
Thanks for your message.
Please check the update tutorial below then give it a shot.
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Update File:
System Firmware-G13-202500421:
https://www.dropbox.com/scl/fi/lrj2dklb81rq0egrc4fu6/update.zip?rlkey=vtwke1qe2n4j15rbqge754w4q&e=1&dl=0
MCU-4.16a:
https://www.dropbox.com/scl/fi/naeti7ndomeqvpijl3old/hmcu.img?rlkey=0jnxmx1wpo3yvtrc2xaxpesrr&e=1&dl=0
Tips:
1.
Download above update file via your computer/laptop.
2.
Format USB drive to FAT32 Format.
3.
Copy the file “update.zip”&“hmcu.img” to the root directory of USB drive.
4.
Insert USB drive into the unit via USB cable;
then it will pop up automatically a window of update.
Alternatively, please manually go "Settings > System > System updates/MCU updates" to start the update.
***NOTE:
Please make sure that you have ticked option "Wipe data and format flash!".
Reference Operation Video:
https://www.dropbox.com/scl/fi/7tgvc28sn77ux6g6fmosm/MCU.mp4?rlkey=7p5940e12kb88a42zue6qntft&e=1&dl=0
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Thank you for the files but unfortunately if did not resolve my audio issues.