I'm modding my russian Big Muff. I already have the DC jack hooked up and for now, I have it sticking out of the battery compartment (ghetto). I started drilling a hole in the casing, but then my drill ran out of power and I couldn't find the charger. But now i'm wondering, after I drill the hole, the adapter isn't just going to stay there is it? So how exactly should I go by mounting this thing?