2006 sentra rs wiring

It's my first time doing a nissan and I notice they have a "second starter" and "second accessory." I'm installing a Clifford Matrix 3.5RSX

Now correct me if I'm wrong:

As for the [b]second accessory[/b] do I need to hook that up? And if so do I use a realy or simply diode isolate/splice together?

TIA

Your clifford "should" have a bunch of secondary negative outputs (used for triggering relays) that are for starter, accs, and ign.

Use these outputs to trigger relays for your second starter, and accs.

Thanks for the quick replies kartuneman and chris.

So Chris, yes I understand what you said.. I'll keep the 2nd accessory unwired. And I'll do the relay ribbon modification since I don't have a "ignition 2" to wire up in this car. But just to clarify I don't cut the small purple but only tap into it with the cut small pink/white comming from the brain - correct?

Ok now second question about the SECU. This sentra does not have power windows/locks so I'm assuming there is no SECU in this car as I cannot find it.