I am assuming you installed a set of separates (2 midranges, 2 tweeters, and 2 x-overs) to replace the factory speakers. If this is the case, you'd want to use the factory wires as the input, then run separate wires off the x-over's outputs to each respective speaker. Anything other than this, I'm not exactly sure what you were trying to install. What brand speakers did you put in?nissanDood said:04 Nissan frontier King Cab XE (4 speakers)
The speakers that replaced the factory have a crossover seperating the mid and tweeters. I did not change any wiring going to the pillar tweeter, just using the tweeter that comes with the new speaker, so I would have assumed that they would have continued to work.
Can anyone tell me if the nissan wiriing has a crossover somewhere in it or what I am missing ?