93 s10 blazer door lock issues

Iam hooking up a viper 771xv and cannot seem to get the door lock hookup correct. Every help source is telling me that my truck should be reverse polarity because it's a 2 door. However,  the wires read positive pulse on my meter.

if while you are holding the lock button and it stays at 12v then its positive,,, but i dont think the other color is a tan

GM mostly used black, white, blue....

if it is positive pulse, u will hear relays clicking inside.. they are either found in passenger kick panel, or high in dash on driver side..

an easier test is to cut the lock wire... if doors stop working, then its reverse polarity.. for the most part the big 3 did reverse on 2 doors..