S2 RS4 Manual Swap Wiring

[Thefridge7]

Started the manual swap this morning, I’ve noticed every forum and video the trans loom has 4 plugs under the battery as in the picture shown

I got into mine and it seems to only have 2 plugs.

I think s1 autos might have 4 and s2 have 2. Any info on what needs to be cut or looped for the reverse lights, neutral and inhibitor switch etc would be appreciated or if anyone that’s done the swap knows.
Also just wanted to know if I’m supposed to have a manual loom or starter loom or something? I’ve seen it mentioned a few times but not sure if it’s needed as my trans didn’t come with a loom. TIA

[Duncan]

Sorry I'm not sure, but to work it out turn on Ignition, unplug all and check which pin on the car side has 12v (which goes out with IGN).

Then on the gearbox loom side check for continuity between that pin and any other when the auto is in Neutral, that is your neutral switch wiring. Same for Reverse. Probably the same for Park/inhibitor although I guess you will just loop that one. 

I'm not sure about C34 but in R32 the engine sub loom loom has reverse switch, neutral switch, oil pressure switch/warning light, power steering idle up switch, oil temp sender for gauge, alternator wiring and starter motor power and solenoid.

[Thefridge7]

Alright I’ll hook the battery back up and try that luckily haven’t taken the shifter out yet. Thanks

[GTSBoy]

It's much better to have the manual driver's side loom and swap it in.

[Thefridge7]

Do you know what the difference is between auto and manual loom?

[GTSBoy]

The physical location of the plugs for reverse and neutral switches, the absence of the inhibitor switch wiring. You basically have to remake it if you don't have it, because the R & N switches are not down on the side of the auto box.

[Thefridge7]

Oh alright so you basically have to make your own loom for R and N and run it from the side of the manual box to the front?

[GTSBoy]

Well, yeah.