wiring amp and/or sub?

Hi, i have been having trouble on what i should do with how i should be wiring my subs. My amp is Hifonics BXI 1610D which the bad part about this it has 2x + and - instead of just having one + and - and 2x Rockford Fosgate P3SD212 shallow mounts dual voice coil which are at 2ohms. how i want to run it is that they are 2ohms per sub since its a 2ohm sub and the amp can handle 2 ohm stable. what im trying to figure out is how can i run the subs? theres a method of running dual 2ohm sub to a 2ohm load but theres also a method in the hifonics book running one into a +- and the other into +- but i dont know which is the right way. any advice would sure help me a whole lot. Thankyou.

i would just run my subs in series - to +  from one sub to the other then -and + on the amp12345

So pretty much the same as the diagram on this website? for 2 2ohms to a 2ohm load?