speaker upgrade

About a year or so ago, I was thinking about just adding an Amp+subwoofer+dsp to my 2022 silverado crew cab, however, I decided against this due to space issues. Now I am considering adding an amp and just replacing all the OEM speakers (6 speaker system, non-bose) with after market speakers...

Need advice I have a Hyundai i10 hatch Currently running the stock Audio system which gives a decent sound quality however... I would like to change the current speakers and add an active subwoofer / underseat subwoofer in the car. Is it possible to connect the subwoofer in the trunk of the...