Unless you connect the alternator output to the ammeter opposite the wire going to the starter, the ammeter will just be there for decoration. It will never show a "charge" because the charging current will be bypassing it. In about 5-4-3-2-1 seconds, somebody will show up claiming that an ammeter is a fire hazard. Never mind the millions of them that haven't been setting vehicles on fire since the 1930's!
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!