R32 automatic, extra plug?

[bakwoods]

Hey guys, need some help trying to figure out what the plug is on my chassis/engine harness next to the ECU, the three engine plugs have a home but there'sone plug on the chassis harness that is missing a home.

Anyone with an auto RB20DET if you could reply to this and tell me if you've got it plugged into something. I'll upload a picture tomorrow morning, it's nearly 11pm here and it's too dark to see anything. It'd be nice if it's just an optional plug as my old chassis harness was ripped to shreds and had an R31 ECU hard wired in.

[KiwiRS4T]

Some cars have a bunch of wires just going into a common earth...

[bakwoods]

@KiwiRS4T Turns out it's the active spoiler plug. Apparently the Type M had an active spoiler which was wired back to the chassis harness which had that one yellow plug directly above the ECU. I'll throw a picture on for good measure tomorrow. However after speaking to my two Skyline friends (both R32 guys) they said there's was blank. Someone speculated it was A/T related however it's not. 

Glad to get that out of the way. Meanwhile, see other thread for updates. I still need help from ANYONE WITH AN A/T SKYLINE GTS-T!!!!!