Help?

Sorry if this is not the right place to ask, got my s2000 a couple of years ago, due to work, covid and other I haven't been able to fix it properly.

It now runs what I'd consider well, but I've never driven it for longer than 30 minutes.

My problem is, I have no idea what connects to the intake hose, can anyone tell me what am I missing? I'm not a mechanic by any means and getting parts where I live take months, so any guidance would be appreciated.

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Hose for the secondary air injection goes there for 00-05 cars.

 

Dont leave it open,will need capping with a suitable plug.

 

That hose is cracked, so needs replacing anyway.