I think the above answers your question.

…ot up to in the 80s so long as it was Outside, but it still strikes me as odd that nobody questions why a 17 year-old is chumming around with a slightly(?) deranged scientist at all hours of the night.
The Fantasy and Fallacy of Time Travel
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Eric Pierce
Simon Dillon
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Jun 1, 2021
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I think the above answers your question. He has a huge speaker for sonic experiments that Marty can use for rock and roll purposes.
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Written by Simon Dillon
49.95K Followers
·101 Following
Novelist and Short Story-ist. Film and Book Lover. If you cut me, I bleed celluloid and paper pulp. Blog: www.simondillonbooks.wordpress.com
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