The general idea is correct but like he said, there is MUCH MUCH more that a good quality stereo involves. Its actually quite funny he made this, I am currently putting my stereo from my truck into my VW and I was trying to see what I could do to not have the sub overpower everything else. The system consists of:
Currently thinking about what to do in the front. I would like to go Eclipse components but they are a little pricey for me at the moment.
Edit: Holy crap… apparently I’m writing a book.
You know, with all the cars I’ve done, I have never truly NEEDED to wire in batteries or large/many capacitors and rewire power and ground cables under the hood with 0 gauge and beef up alternators. If your goal is purely SPL, yea, you would need it. Overall, for a quality sounding setup, there is no real need for that.
Marty, here, knows more about SPL than me, so if you want that kind of advice, totally ask him. I only know a bit about it and did a little work with it but got tired of it really fast.