Owners with JBL - Have You Replaced Dash Speakers with Improved Sound?

I know there are discussions of people with non-JBL replacing dash speakers for better sound. However, I am curious if those with JBL systems have replaced dash speakers and have gotten improved sound while still using the factory JBL headunit and amps? If so, what speakers did you use? In what ways did the sound improve?

Thanks in advanced!

 

I've read that the Kicker upgrade people use doesn't work with the JBL system.

 

https://www.4runners.com/threads/diy-3-5-jl-audio-dash-speaker-upgrade-wow.7466/
Several folks on here have done so with good results. There is more than one thread about it, a couple with pics and some video links too. Pretty sure I watched all of them before doing it on mine (non-JBL). It’s easy, definitely worth the improvement in sound.