Yaris MK3 Retrofit Double Locking

[pgl]

Hello,

Not sure as to what happened to my previous post, but here it goes again:

I own a 2012 Yaris Style trim NLP130 LHD.

Having gone through my owner's manual, I read an excerpt mentioning a double locking system.

I went ahead and bought the only module I could find on ebay (since most people avoid this feature), that being #8597052040 (Toyota Yaris Hybrid Double door lock control unit)

However, I do not know how or where to install this module. Does anyone have any info concerning this? Maybe a wiring diagram?

Thanks