Question on mounting a new coil (+ and -)

[Neil Mylar LakewoodCA]

Can someone tell me the correct direction of installing a new coil? I'm assuming that the + on the coil goes on the passenger side of the firewall and has a wire that connects to the ignition switch. And the - on the coil goes on the driver's side of the firewall and has a short black wire that goes to the driver's side of the junction box. In addition, there is a wire from the driver's side of the junction box that goes to the negative side of the ammeter. Also there is a wire from the passenger side of the junction box that goes to the + side of the ammeter. Am I correct? The coil I am removing had no + and - on it. Thanks.