Low speed GMLAN serial data

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D Hayes

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Does any know what this wire does? Its attached to the harness with 2 noise reduction mics at the factory amp. I want to disconnect the mics for my aftermarket amp install. Will this cause me issues with my 2015 Tahoe?
 

Kpwweb

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Yes. GM uses three busses-literally high, medium, and low. They transfer data around the truck to the 20+ computer systems (give or take). The low-speed bus typically transfers data for the infotainment system and HVAC. So you could lose some or all functionality with that stuff? Not sure if they need an “end” or not?
 

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