69Cbrge has some good advice. You have a dead-short somewhere. You could temporarily install an inline fuse in that circuit & carry a stack of fuses until you figure it out.
Anyway, check the charging system first as noted above + bulkhead disconnect. If those check out, start going circuit by circuit & disconnect them.....when your "fusible link fuses" stop blowing, then you know what circuit you have a short. Check your wiring diagram & see what's on that circuit. PIA, but basically just tracking down a short
70 Roadrunner convt. street car
440+6, NOS, 4-spd, SS springs
'96 Mustang GT convt. street car
'04 4.6 SOHC, NOS, auto, lowered
"Officer, that button is for short on-ramps"
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