I was thinking of adding a set of EMG PJ set on my MIM P-bass, but I'm not too sure of a few things... 1st, my P-bass does not have a routing for a bridge pick-up and I don't know if there are any luthier in my area, does a guitar shop do this kind of stuff? 2nd, will there be enuogh room to accommodate an additional pot and a 9V battery? 3rd, after the installation, will it still have the P-bass sound when I solo the P pickup? or it would sound different because of the wiring? Thanks for any help.