12pin vs 18pin climate control black connector

[DTM_Theory]

I recently picked up a used climate control module from a junk yard due to mine having a bunch of dead pixels. Turns out the one from the junk yard (out of a 2004 X5), uses a black 18pin connector where mine uses a black 12pin connector. I figured I could swap the panels between the two without having to repurchase another 12pin climate control module. I did the swap, tested it, and it actually worked surprisingly. I even retained my previous temperature settings also.

With that being said, due to the differences in pin count between the two; is there anything i should be concerned about electrically? Also, are there any difference between 12pin and 18pin climate control modules? Although it works as it should; id like to prevent any potential fire hazards from this modification.

Any thoughts?