some discos (like mine) only had an 80amp alternator. surely if u got the 130amp one then there would be plenty of leftover power spare. if ur doing wot u say with the wiring and relays then i dont see a prob, as long as u dont melt the wire from ya alternator to ya battery

i used to run a modified vauxhall astra with about that power lights and audio amp. that only had a 65amp (i think) alternator and was fine
 

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