WHERE DID U PUT UR AFTERMARKET STEREO & SPEAKERS

I am thinking of putting in a aftermarket stereo in my barracuda. I am going to get front kick panels that have the speakers in them. I also want to put speakers in the back some where. Im just not sure where. I dont want to cut holes in the rear interior panels.
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I made custom kick and 6x9 rear deck but i know its not a cuda but you can do the same

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