how to hook up a exterior car speakers to a switch

[Trigger4k]

I'm trying to install the 8" PA horn for my music so I can play it outside of the car but I would like to wire it to a switch so I can turn it on and off can anyone help me, please????

This is what I'm talking about

And I'm trying to wire it to this
So I can play music from my head unit and be able to turn it on and off

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[Popwarhomie 5,000+ posts]

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