location of on-star/telephone unit

2007 BUICK LUCERNE
50,000 MILES • 3.8L • V6 • 2WD • AUTOMATIC
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ROYGOSSETT
  • MEMBER
  • 26 POSTS
Can you please tell me the physical location of my on-star/telephone unit within the vehicle?
Sep 17, 2016 at 4:54 PM
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SATURNTECH9
  • CAR REPAIR CONTRIBUTOR
  • 30,869 POSTS
It is number four in the diagram.
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Sep 17, 2016 at 5:43 PM
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