You can say it that way....how about this. I used stock wiring and ran a 4awg back to two amps. One was a SAX-100.4D from sundown audio. The other was a Massive Audio CA50.4

If you want to listen to marketing b.s. I was pushing about 1800 watts. The reality is that I only pulled about 30 amps of power when cranking it out. That setup has been replaced by a Zed Leviathan 6x150. I'm using 4x150 as full range and 1x500 toa sub. It's a class D vs. Class a/b. I have not noticed a difference between the a/b "1800" watts vs. the class D "1100" watts.

04+ alternators are plenty for what you're doing. Realistically you're only using about 10% of what an amplifier can test when playing music; if you're burping or listening to sine waves that's VERY different and can easily destroy an amplifier but in those cases you are MUCH closer to utilizing what marketing claims.

So....do you listen to burps or sine waves going down the interstate?

Your wiring is fine. Go play with your toys