Car audio system

[west ore]

im not sure if this is the right place, but could someone guide me to a platform (discord server, website, forum) that goes deep into the audio system of a car?

i know audio systems outside of a car (hobby dj), you have the audio source, goes into an amp, amp puts signal to woofer, tweeter, and subwoofer.

for cars i only know basics, head unit provides source, theres speakers in the doors (woofers and tweeters combined i think)

im also not sure in a car which parts of the audio system need to be connected to the battery, and if theres a different amp for the door speakers and backseat/trunk subwoofer

but i want to dig deep and i just got a small car, i want to redo the entire sound system, including subwoofer, gonna make my own box for the subwoofer cuz i got some wood and tools anyways and i dont wanna spend quadruple the price cuz of a wood for a sub

[glacial drum]

No matter if you DIY it or pay someone to do it go to JL audio’s website. They know their shit

Car audio systems are the same as home audio just with a head unit. It’s not too difficult as long as everything fits

[west ore]

thanks but thats just to buy parts, im looking for basically a scheme of all the wiring and components that sit between the head unit and the speaker

[stone quail]

It's honestly the same thing as any audio system. Crutchfield.com is another great website.

If you'd like a video tutorial, go on youtube and find the one donut media made