Ammeter bypass

Going to be doing the ammeter bypass adding a wire directly fron the alternator to starter relay. Also want to delete the ammeter altogether. Are the ammeter wires reachable to remove and join together do so under the dash or does the cluster have to come out?
Only asking because I've got a bad back and front seat needs to come out if I need to get under there. It's a 74 Duster. Thanks