So it's been 10 years of me working on my Firebird and it time to put it all back together. I've got nearly everything figured out 99%. Except this. Is it a part of the old stereo system? I can't see anything that this will plug int



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Looks like the connector that plugs into the factory stereo for a pair of speakers. Rear I think.

 

Thx. It's what I figured.