Originally Posted by DallasJKer
Gotta bump this thread.
I just received my 2012 JKUR last week and am looking to replace the factory amp and speakers.
Anyone successfully done this while keeping the factory nav/radio?
Yup. Lots of threads on it. I've done a couple of flavors
1 connect in post factory amp with a combiner. Jbl ms8 or the like. Use that directly to amp the speakers or drive the amps. That was my first setup
2 connect the rear speaker outputs of the head unit ( which are the to signals that go to infinity) to an amp with remote volume control and channel splitter. Again ms8 or similar
3 ditch it buy aftermarket and hook that to the amp
1 actually did quite a nice job for me
2 was a pain because you have to use the ms8 for volume
3 is where I'm at now and it rocks!