Weird noise from behind the dash?

[Trevtron]

Have never heard this noise before, doesn’t sound like engine or drivetrain noise. Anybody ever hear anything like this?

I had replaced the speedo cable about 6 months back and wondering if it might be related to the noise as it’s coming from that area.

Around 20seconds and 28seconds it first appears and randomly throughout the video you’ll hear it.

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[Trevtron]

Ok, I’m thinking it’s just the plastic dash trim over the instrument panel that’s making that squeaking and rattling noise intermittently.

Now that I have finally have a matched set of Delphi BB code injectors that truck has an entirely new type of vibration...way smoother!