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Head unit/OnStar Question

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Discussion Starter · #1 ·
I am wanting to install a new head unit and I was wondering if there was going to be an OnStar issue. I am not exactly sure if there will be a problem in doing so. Just thought I would ask before tear into everything lol.
 
DMAXchris

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Its just a worktruck
19 Sierra
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#2 ·
No issues. Onstar is in a sperate location behind the glovebox. Make sure you get the correct harness adapter and everythng will work like stock.
 
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Thallman30
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