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Discussion Starter · #1 ·
I am looking for the part that I would need to connect my new car stereo to the current wiring harness in my 2003 Chevy Trailblazer. The female harness that is in my car is the Metra 71-2003-1. I am looking for the Male harness to connect into this one. I see that Metra has the 70-2003, however since I am an amateur at this don't I need the black 12 pin male piece as well? If so does anyone know what part that would be?

Hopefully that is all makes sense. Thanks
 

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Discussion Starter · #3 ·
I have the factory installed radio which I believe is the BOSE radio currently. I do not have On Star.
 
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