Improving Car Audio Setup for Ram 1500 Classic Quad Cab

It's for my ram 1500 classic quad cab. I have the g60s (second pic) have inline crossovers tweeters in the dash and it's woofers in the front doors. I'm running these at 50rms each off the kicker 27key200.4 with a built in dsp. Haven't gotten the hertz mps 250 S4 (first pic) but I'm about to. I plan on putting it under the back seat since there's no other option in a Quad cab. I'm thinking 300rms will be an solid balance for the sub with my given setup. I don't want to overpower the low power g60s prioritizing sql. My main question is, what should I put in the rear doors? Maybe midranges? I need to balance out the g60s. They have very good clarity but the high end of vocals and treble are harsh. The woofers create a punchy high-end base, but the low end base and midrange I think is what is lacking. They dont have enough power to balance out the tweeters maybe. I'm unsure what I'm doing wrong. Yall have any recommendations for tweaks ie changing rms getting a dedicated dsp rather than built in kicker, any amp recommendations to go along with the hertz sub or back door replacements, or anything else I can do to improve my setup. I want to prioritize sql but id have no complaints having a little power and have a preference for tighter puncher bass. Im just afraid of overpowering the g60s that have really good fidelity. The most i want to pay for back door speakers or additions is 400. Although it's worth mentioning Im running this off a android tesla aftermarket radio that was meant to be temporary. This could be causing all my issues. I plan on putting down a decent chunk of change upgrading to a excelon reference, heigh10, or horizon 12.