Electric washer bottle

[wkubug]

can someone help me, i have my electric washer bottle mounted and piped in and now i'm trying to wire it up. I think that the red button in the center of my dash is the old button for the spare tire bottle (it was gone and the nosal was painted over when i got the car) I looked on my wiring diagram and can't figure out what the wires run to and from I don't want to mess the wiring up can someone help? there is a whiteish wire that looks like it connects to my emergency light switch, a red wire that i guess is the power to lightup the red buttons internal light, and a brown wire that runs right to the wiper motor switch, which i guess used to open a valve to spray the old washer. I circled the button in question in the picture if anyone can help. I'm no good with car wiring