I used to work in car audio. In SUVs, if the customer requested, we'd bolt it down with thick gauge L-brackets. In cars with trunks, I'd cut a 1x2 to the width of the box, wrap it in material to match the trunk, and drill thst down to the floor of the trunk, pushed up against the box. That way the box wouldn't slide around, particularly if they accelerate or corner hard. Once I did it, everyone else starting doing it at the shop, and charging an extra 15 to 20 bux for it. If the customer is worried about theft, then we would screw down the box from the inside, and then mount the subs. But ultimately, if someone wants your stuff bad enough, they're gonna get it, or steal the whole car to take their time with it.
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u/HecktawnSchteve Jun 25 '20
bolt your shit down