easy way to tell is use a 9v batt.... since a 9v batt has a (+) & (-) shown you can pop the factory speaker (when not hooked up) when you do it see what direction the speaker moves.. if cone moves up (away from magnet) then you have it correct.
hope that makes sence.. if not you can test what i said on your new speaker.. since aftermarkey speaker will show whats (+) & (-).
it's a old trick in car audio. since places can change wire colors. and i dont trust computer/books bc they are not always 10% correct
95 YJ, 4" suspension lift, 32's, 2.5l 4 cyl (350 built and waiting to be installed in spring, along with ford 8.8 rear end)