Advice on simple budget friendly speaker upgrade.

Goal is to swap out the factory speakers with aftermarket plug and play speakers , and the Beat Sonic amp for hopefully a noticeable improvement over the oem speakers - with full understanding this is a budget solution

2024 Prius Prime XSE with 12.8 infotainment.

I've ordered the Beat Sonic ENE 3T3 amp

Four Kicker KSC67 - for front and back doors

Two JL C2-075ct tweeters for dash

I'm comfortable dropping all this in - plug and play all parts needed come from Crutchfield - easy and have done before to other cars .

My question is - I have no real car stereo technical understanding - besides new speakers all around and the plug and play amp is there anything else simple I can do to improve sound while I've got it all open and doing the install?

I know when I pan back to the rear seat oem speakers they sound awful - this sort of influenced this upgrade - hope at the very least that will be improved a little

Any and all advice welcome

Thanks in advance

 

Long story short for the money and time spent absolutely worth it - the difference is notable and super enjoyable - not going to blow away an audiophile, but surpasses my expectations .

2 pairs of Kicker KS for front and back $260
JL tweeters for dash $159
BeatSonic amp (the model with sub woofer outs in case I want to add). $349
Total $768

I did the instal in three parts - as parts came in -
first amp, not even an hour ,
then tweeters, probably over an hour ,
then door speakers front and back - couple hours -
it was approximately 4.5 hours working slow because it had been well over five years since I had done this.
I watched all the install videos on YouTube a couple of times, had all tools needed, so was ready for a simple install - everything was easy

If you are not happy with the sound of your Prius I say jump in worth the time and money.

So my question, for those who installed a subwoofer, worth time and money? Is there a sub that fits under passenger seat of 2024 Prius Prime ?