Two 3-ways will work exactly the same in your truck as it does in your house.
+12v to the common, travellers between them, and the other common to the lamp(s). Ground the lamp(s).
If you want to use 'automotive' switches, get SPDT and consider the center terminal as the common, the outer terminals the travellers.
+12v to the common, travellers between them, and the other common to the lamp(s). Ground the lamp(s).
If you want to use 'automotive' switches, get SPDT and consider the center terminal as the common, the outer terminals the travellers.