Hi;
Welcome to the forum.
I've never made bacon jerky. I've always been concerned about the fats going rancid. There are plenty of recipes out there, and plenty of different companies making it, so I guess it works.
If it is bacon and not fresh belly, you can make jerky directly out of bacon without marinating it. If you want to additional flavors, then you can marinate it; if you want to do so.