Need help identifying and rebuilding an electrical part

[metinckeles]

Hi all! I have a 2004 gs500 which is poorly looked after by the previous owner. It was cranking but there was no spark. I'va came to the conclusion that this part in the wire loom was missing and I couldn't find any info on it.
Does anyone knows what this does and how can i replicate one? Please note that all of the cables that goes into this connector is black. How can i know which does what and goes where?

[mentalshark]

Hey, where is this plug located on the bike?

[herennow]

Have you found the plug on the schematic?

[metinckeles]

Hey, where is this plug located on the bike?

Originally, I don't know since my chassis was chopped. But here are two pictures i found online

https://ibb.co/86hSLQn

https://ibb.co/9pBrnm7

[metinckeles]

Have you found the plug on the schematic?

Unfortunately no

[The Buddha]

Is that the auxillary ground ? Usually it was black on the 89-00's.
But is it 1 step off the battery ? Then yea auxillary ground. It usually cuts off spark to 1 cyl - and no idea why, but left or right - depends on the bike almost.
Cool.
Buddha.