1.8t BAM Turbo intake pipe

Hi.

A question around the piping on the bam conversion on my mk1 caddy.

Current setup could be better, it's runs fine but could look tidier maybe run better.

Turbo inlet pipe is straight through from filter/maf to Turbo. I wanted to install forge Turbo intake pipe however there are 4 outlets. Where do all these go to?
Atm the diverter valve is blocked off the N75 is there but does not go into the Turbo inlet. There is a catch installed but again misses the Turbo inlet pipe as ther is no outlet. But what would I use for the 4th outlet?

Any help would be great as I'm abit baffled atm.

The end goal is to tart the engine bay up with some new bits but I'm confused by the way is currently rigged up.

Thanks Rich