1. When I was younger, thinking that watching my uncle install stuff was a good way to learn...umm..no. He used speaker wire, front to back, for power, no fuse, gains maxed, prefab bandpass boxes, cut harnesses....and lots more.
2. Cutting harnesses
3. Found 2 MTX 10's and built a sealed enclosure for them out of random wood, that really wasn't sealed. I actually put a hinge on one side, so i could undo one screw and open it easily for any "maintenance" that would occur in the future.
4.Hooking that same box up to my rear speaker wires and fooling my friends as well as myself into thinking I was the sh*t.
5. All Sony xplode $80 walmart special system.
Not neccessarily in that order. I swear I've come a long way haha