Rear speakers AND Defogger?

I would like to install rear speakers in my Demon, and I'd also like to put in a rear window defogger. Here's my dilemma - since it appears that the defogger was designed to install in the same place as a speaker, it would seem that I can have either one speaker and a defogger, or two speakers and no defogger.

My intention is to keep the installation "correct" for my model, so can anyone shed some light on this for me? Were dual rear speakers even offered on a 71 Demon? I am guessing not.


Thanks,

Michael Anzalone
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no info here. but am curious on this also. going to put a defogger in my 68 fastback fish, but already have the interior done and not going to tear it apart-----boib