No warning tones, No radio sound, No bluetooth & No HUD - Modules?

[smassey321]

My best guess is your most signal comes out of the CIC and travels back to the most hub behind the rear seatback. It then goes to the amp and combox and back through the hub. From there it goes to the HUD and then the connector under the pass side dash and finally back to the CIC.

If it were my car, I would use some of my junkyard most fiber to jumper between the most hub output and the connection under the pass side dash. This should bypass the HUD as a test.