XFI, fuel pump, fan connection

[jjump59]

Just trying to get this thing wired up and am confused! I have an aeromotive pump controller and a DC fan/water pump controller. I see that my ECU has wires for the fuel pump and the fan, how does this come into play? Do I use the ECU wires to the switch terminal of the controllers, do they just tell the fans/water pump and fuel pump it's ok to run? Another concern is the tach signal, I understand I need one for the ECU and one for the fuel pump controller, can I splice one wire into two from the MSD box tach signal or will that screw up the signal? Thanks for any help you can provide.