You mean turning it off while driving down the road? No, it happens if you step on the brake.
I meant as in the module for it beside the serpentine belt just trying to make space for an extra battery
If you want another battery I would install it in the trunk and leave things alone.
Trunk would be the best place to install an extra battery. Finding space under the hood limits your ability to mount and protect it properly. A little more wiring but well worth it.
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