Alternator wiring issues

1972 swinger small block, cam, heads, supercharged.

'7' ; the large red wire on the alternator output appears to go to a ground on the fender. If so, this is wrong. It should be a #10 black wire going into the center section of the bulkhead connector. Then go to the ammeter, out the other ammeter terminal, back thru the bulkhead connector, then to the starter relay on the left fender. Do all wiring work with the battery negative terminal disconnected. Before reconnecting the battery, close the doors and test the current draw with a test light.