Hi all, I'm looking to replace my stock Yamaha BB 405 passive J pups for something better. Based upon a couple of searches and price, *I think* that the Dimarzio Ultra Jazz - 5 String Bass Pickups may fit the bill. I'm just hoping that I won't have to do any major mods to make em work. The outside measurements look to be the same as my stockers. I'm just hoping that the depth, wiring (I have 3 knobs now, two volume and 1 tone), etc will all work. These are going for $100 - $110 depending where I look. Any ideas who may have a better deal here on the forums. I'd rather put my $'s in the hand of a forum supporter rather than just some shop I don't know, plus I'm hoping they (or you) will give me any pointers or tell me if these won't work or need major mods to work, etc. Oh, I'd prefer to stay passive at this point. Thanks soooooo much!