First install with no clue how anything works

Unbothered by any knowledge I slapped together this sub and amp I got gifted with some cheap pioneer stuff to complete the set. It all works albeit more loud then pleasant. But it's my first car a ratted out '86 Scirocco so I guess it fits the theme. The amp and woofer are unknown '80s equipment. The woofer is 500 watt and the amp 400 and that's all I know.