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I have a 1969 mustang coupe and i want to put in an audio system in it eventually, i need a new alternator what size should i get? It is a stock one in it now im sure its really small...

Gold Member
Username: Basshead86

Ocala, FL USA

Post Number: 1525
Registered: Aug-05
it depends on how many amps of current your system will be pulling.
the rule of thumb is 10A of current for every 100watts RMS of power.
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