>>28350478
>now the speakers are drowned out by the sub
So get rid of one of the 12s and turn the gain down til it matches.
I guarantee you're getting at least 90 decibel from your interior speakers on a stock or otherwise standard output head unit. If they're at least half decent speakers like the infinity reference, polk DB, etc. you're probably getting 94-95 decibel from them before the head unit is overdriving and distorting.
Bumping up to 50 watts is only going to give you about 3.5 more dB which is barely noticeable
Since you already have a sub, any comments made to my post about
>yeah but like frequency quality and shit
Are irrelevant.

3.5dB is essentially worthless, and with a sub and aftermarket stereo you should already be high pass filtering your in-cabin so they arent making any noise below about 100 hz (try a 120hz HPF setting for fronts and 110 for rears.) This saves a lot of speaker power budget for the range they can actually do, because bass freq consumes something like 60% of the power on a speaker being given the full 20-20khz range.

Trust me when I say you do not want 100 decibel of sound power damaging your hearing all the time.
Get rid of a sub, check your cabin speaker crossover settings, and turn down the remaining sub to match. You'll have not wasted money, have good quality and have plenty of audio volume.

Bonus points:
Grab a pink noise generator app and the Spectroid app, use it to tune your head unit's EQ and the sub's amp, thank me later.

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Amp wiring for door/rear speakers