Circuit Breaker on Ammeter Bypass

My plan is to continue to use my red and black wires with fusible link at the bulkhead connector and splice red and black at the ammeter, leaving it dead. My BC is in great shape. I have a '71 non-rally dash (boring) and thinking of converting the ammeter to a voltmeter must may just hang the voltmeter down below the dash with my oil gauge and temp gauge.