This may be a stupid question but assuming you keep everything they way it is (i.e. factory plug) and do not change the connector is the only implication that the inertia switch will not work and the fuel pump will still have power? I thought most modern cars today do not have inertia switches, is that true? If so, what is the big deal with not having one (i.e. not changing the plug or jumping it). Don't want to sound like someone who isn't interested in safety but just curious as to both sides of story. Also, when does the inertia switch engage? Front, side, rear impacts? Rollovers only? Again, just trying to be more educated about them.