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2009 dodge ram 1500 sport 5.7 HEMI
long time looker, first time posting. i was under my dash running under dash led strips and was looking for a power source (no luck) without splicing into factory harnesses and seen these two plugs, i know the top blue ones is for trailer brake controller but im curious what the smaller gray one below is for. also seen one higher up that is half the size and up by the steering column that was unused with two wires running in and had no live power (no pic yet)