I'm unclear on what your unhappy with, the stock speakers or the infinity speakers? Also did you replace all speakers with the infinity reference? I'm going through upgrading with my truck and have found the system has a weird setup.
The two dash speakers are 8ohms, and the 4 door speakers are 2 ohms.
If you replaced all 6 speakers with 4ohm infinity speakers, your two dash speakers are now going to be way louder since they have less resistance and will over power your door speakers which now have less output because you increased the resistance at the door speakers.
I took a set of chrysler specific kicker upgrade front speakers (77KICK28AB) out of my 2015 ram and swapped them into this truck. Replaced the dash speakers with 4ohm tweeters, and the front door speakers with 4ohm kicker midrange woofers. Left the rear doors as 2 ohms factory. This did make the dash a little brighter than stock but it actually sounded pretty good, my only gripe was the factory rear door speakers couldn't handle the Bass at high volume.
I just put a set of 4ohm Kenwood's in the rear doors and while they're clearer, it really hurt the sound output. So I ordered a set of powerbass 2ohm 6x9's to swap in so I can return the Kenwood's and I'll see how that goes.