The InCommand Display Cable 4004269-12 is ISOBUS capable. The 6-pin male Deutch connector with female sockets ins the ISOBUS connection. 

There is a few ways you could accomplish the same end goal, these two would be  my suggestions.

1. This is the simplest/cleanest/factory fit way. You would be converting your Integra ISOBUS Retrofit Kit to an InCommand Retrofit Kit by buying one cable. Purchase a InCommand ISOBUS Retrofit Adapter Cable 4004478-XX depending on the length you  need, 08', 16', or 24'. Ag Leader's list price is $145, $180, and $265 for the different lengths. Install per the instructions here, while removing cable 4002585 from your Integra ISOBUS Retrofit Kit. https://portal.agleader.com/community/s/article/4265?language=en_US

OR:

2. Have the competent precision ag tech of your choosing make you up a tee adapter cable to adapt the 6-pin Deutsch on your InCommand Display Cable to the 4-Pin connectors present on your existing 400285 cable. I do this very frequently when tying InCommand displays into existing ISOBUS harnesses.