Auto to manual swap problem

[calvinhorse 870]

Am I right in thinking if an auto 405 is in gear it won’t allow the engine to start?

I’ve got 2 left over plugs, one I imagine will be a reverse light and the other is a very unusual square plug with 4 round female pins that I’ve never seen on a pug before so guessing it’s to do with the auto box?

 

is there a way around this? 

[SRDT 175]

It's the 4HP14 like the 309 right?

Then it must be mostly the same:

 

https://issuu.com/lamicale309/docs/schemas_electriques_309

 

88-89-90/118

[calvinhorse 870]

Thank you, that’s extremely helpful 

[calvinhorse 870]

If anyone in future is having the same problem

 

 

C127. ignition controlled live (yellow)  

220.reverse light (yellow) 

 

these go to the reverse light switch.

 

then join together 

c128 ignition controlled live (red)

106 ignition inducer (red)