Also, I'm in the process of wiring a Basslink and an Amplifier since I have not found a subwoofer cover to date.
160 AMP Alternator upgrade.
Power cable at battery
100 Amp circuit breaker. I prefer circuit breakers because I easily turn the power on and off.
4 AWG going through the grommet in the firewall.
Mounting the basslink to the backseat. After breaking 3 drill bits I removed the back seat cover and this is what I found. I would not suggest anyone else doing this since it was a fluke that I aligned the Basslink's legs exactly with the frame of the seat. This is just for information.
I usually don't run power wire down the same side as the gas tank opening because I'm a little careful, but this time I did.