Tommy - It's never naive to ask questions. This place has many knowledgeable people that are always willing to help.
If you look at the photos you posted carefully, You'll see on the Input side (top diagram) uses RCA style cables to connect the audio signal to the amplifier inputs. On this 4 channel model, it accepts inputs for front and rear separately. If your deck does not have two pair of outputs, you can use the config switch to drive the amplifier from one set of rca's.
On the output side (lower picture), you just strip the cable back and insert directly into the barrier style connector. There is no need for banana style connectors.
It should be noted, that if you intend to use this amplifier in 2 channel mode (to drive 1 pair of Exile tower speakers), you will need utilize a different RCA connection approach. This info can be found on our website under downloads section.
Let us know if this clears things up for you.