kaotic_ws6

i took the motor out of my 99 z28 and harness and pcm to put in my 67 c10, i guess i misplaced the o2 sensors because i cant find them ANYWHERE. eithe way i got some o2 sensors from my buddys 02 ws6 but the wires were cut because i guess he got in a hurry when puttin his lt's on (he bought new ones). the sensors he gave me have 3 brownish colored wires and one purple. and my harness has a purple, black, tan and white, and a brownish one. i was wanting to splice them so i didnt have to buy new o2 sensors but idk about matching up the colors... can this be done?? i know nothing about this stuff but i would love not to buy new o2's. HELP!