I have a 2015 JKU, non-Alpine. I am replacing all the speakers and head unit from Crutchfield. I installed Polk Audio 2-way speakers in the roll bar last weekend, using the factory plug adapter, and only the woofer was removed. The tweeter remained in place, still wired in. Everything worked pretty well, good sound, etc.

This weekend I replaced the factory head unit with a Pioneer AVH-4200NEX, using the Maestro connector so I retained the factory steering wheel controls, factory plugs, etc. After the install, the front factory speakers (knee panel) work well, but I lost signal to the woofer in the roll bar. The tweeters still got sound. During several calls to Crutchfield, I re-wired the rear outputs to the front speakers (which worked) and the front outputs to the rear speakers (no sound). They determined that there was a broken connection somewhere in the wiring. I re-wired everything at the adapter plugs, and still no go. I decided to try the factory head unit, and I got rear sound again.

I called Crutchfield again and they said something about the roll bar being wired in parallel, and that I needed to cut the tweeter wires and splice them into the woofer wires, then the 2-way would be getting full sound. I did that and still no go. It was getting dark by that point so I packed up. So new head unit, only front factory speakers.

My question is, some the rollbar speakers are components, is there a crossover somewhere in the rollbar? If so, how do I get to it? My thoughts are that I can cut the input before the crossover, rewire to the 2-way speaker, and I should get sound. Does that sound like it will work? Anyone had this problem before?

I bought the same speakers for the knee panel, so I need to get this figured out before I change them out too, and Crutchfield has been less than helpful with real solutions.

 

I have polk speakers all the way around in mine and my stock tweeters new head unit with amp and no problems at all > That being said if they were working b4 you changed the head unit I would say that's were your problem is without looking at it its very hard to tell you what is messed up. I do remember something about if you get the polarity wrong it will give you power problems so recheck the wirers and make sure they are hooked up right .( What I meant to say is the polarity of the speaker wires if they aren't hooked up right the power to the speakers will suffer and they wont work right ) and undo what the guy at crutchfield told you to do with the tweeter wires he had no idea what he was talking about the tweeters and the new speakers should work just the way they are you have the wires messed up at the head unit some how RECHECK THEM

 

Possible faulty head unit?