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</head><body><p>Hi Price,<br></p><p><br></p><p>If you did a straight swap of the Ammeter with the Voltmeter you will have all sorts of problems.<br></p><p>The full current is passing through an Ammeter (no resistance), however if you replace the ammeter with a Voltmeter (very high resistance) no current can pass to operate the rest of the system.<br></p><p>You have to connect together the two wires that were on the Ammeter. The plus side of the voltmeter you have connect to the accesory or ignition terminal of the ignition switch. The negative side is connected to any suitable earth point.<br></p><p><br></p><p>Kees Oudesluijs<br></p></body></html>