Wireing is a pain in the A$$

[1980chevy4x4]

O man my truck is one big wiring mess...wires that go to nothing..some just cut up...other go place just hard to trace.....anyway..for inspection i needed to get my windseild washer pump (WWP) working. Well we got it to work but it works on all the wiper settings. Well we got that all sorted out and now theres another prob the solenoid i guess youd call it isnt comming on to tell the pump to come on. I cant seem to get power to the solinoid. One wire (Pink) is on all the time the other wire (white) isnt getting any power at all. I no this was hard to follow and think about if you dont have the truck or the WWP handy to look at but does any body have any usefull info to help me out????