DSP5 switch terminals Round vs. Square with Fin

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Could someone please remind me which ones are which again? (and doesn't the round one work for all of them?)

I have both styles and need to do an LMM next. If I'm not mistaken those are the square with fin type.

I can't believe I never remember this after literally around 100 Duramaxes tuned all in one town HAHAHA it must be true that I have adhd. Not to mention the countless ECM connectors I've repaired after other folks' "diagnosis"...

Anyways thanks for helping out and to clarify I'm referring to the end of the two wires of the DSP5 switches being compatible to clicking into the unused ECM pins. (see photo attached)

Also, since I usually know the answers to all the questions I ask LMAO, one clue I could give myself is that the purple wires I've usually done on LLYs and the gray on LBZ / LMM... But asking anyway because a good friend once suggested that one of them was compatible with several gens.

I miss you guys very much