The standard charging system in a 1967 Chrysler when operating properly will provide plenty of power for the average car audio system. If you cannot keep a battery charged than the thing to do is diagnose the charging system before concluding your radio is the problem.
With a DVM set to DC volts across the battery, engine running at high or fast idle you should read between 13.8 and 14.2 volts +/-. The readings depend on battery condition and state of charge, electrical load on the car and ambient temperature and hence the range.
If you do not have this then its time to diagnose the charging system. Use the shop manual to follow instructions for full fielding the alternator - driving it to its full output. This will determine if the alternator or the regulator (or wiring in-between) is at fault.
It is an easy test and both are easy repairs.
Danny Plotkin
-----Original Message-----
From: misse002@xxxxxxxxx
Sent: Friday, June 3, 2022 11:56pm
To: "300 Club" <chrysler-300-club-international@xxxxxxxxxxxxxxxx>
Subject: {Chrysler 300} High output alternator
Hello, anyone know where I can get an alternator with more than the usual amps? I put music in my 1967 Chrysler 300 convertible. I have an isolator and extra battery in the trunk and it’s still draining my battery.
I need a high output alternator.
Thank you,
Elaina
Sent from my iPhone
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