Just replaced the speakers of my Jurassic Park Premium with new Kenwood speakers just like the LE version. I added a yellow faceplate and RGB lighting to make them pop. I threw on some cupholders and side armor rails. I am very pleased with how it turned out.
If you're thinking of doing the same with regards to the speaker upgrades, be advised that some soldering is involved. To make my life easier without having to find new cables and connections, I simply unsoldered the old speakers and resoldered the new speakers using the existing cables. Also, if your adding a colored faceplate and RGB lights, don't overtighten the screws or you could possibly crack the faceplate plastic or worse, the lights themselves. Also, if you're upgrading to the Kenwood 5.25" speakers, your going to need to buy the custom speaker housing. Link below: