For the 3.5 dahs corners and center you need the right connector as the ones for the doors are different. I bought the red wolf for both types from amazon. The dash ones were ASIN B0878YRT8X and are listed for "Dodge Ram Jeep Chrysler 2005-2020 aftermarket front dash plug. So do make sure you get the right one for those. Those infinity speakers are also the right ones (I got them as well) and I like the sound, but as you can see, it's all in the ear of the beholder on what you like best. They were a little right to get to fit in the holes and line up (not as direct fit as I was expecting) but I was able to get them seated flush and not hit anything. The Red Wolf connectors are great because they already align for the polarity of the speakers and only fit one way with locking pins. So they are pretty much idiot proof and secure.
I have not tackled the headliner yet but have infinity speakers for them as well.