I just got my EMG-J set for my bass, it comes prewired with a Fender style input jack. My bass has a Ibanez style input. I'm not sure if it stays the same as before and just adding the batterie wire on the empty tab. Or if it's the opposite, there is one white and one black wire on my input already, same colors as the EMG one. I noticed there is 3 different lenght of tabs on mine, if someone could tell me what they all do it would be really appreciated. Also both pickups dont fit in the cavities on my bass, they almost do but the bumps where the screws go are a bit wider on the emg's, I was wondering what ppl usually do to get them to fit. Should I strip everything on the bass and use a router? Or could I just use a my dremel and sand where needed? Any other tip or things I should know before I get started? Thanks in advance!