I have a 1999 Toyota Tacoma running
2 10s 1600 watts
4 sylvester 6.5s
4 sylvester 8s
1800 watt taramps
Sundown sae 400.4
Big 4 upgrade
250 HO Singer alt
Duralast front bat
XSd3400 secondary bat
OfC 0 gauge wiring all around (multiple runs for the backup battery)
The voltage...