******'You' could, but a real tech wouldn't even consider
it.

No one really knows that .
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There is no free space inside those small switching supplies,

Yes there is in some of them.
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and any modifications make you liable for any injuries, damage or
deaths.

I would kindly suggest doing it right so that wont happen .
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The right cord is cheap enough,

To some thats true
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so why screw it up?

I agree 100% dont `screw` it up .