95 voyager wont start???

95 voyager wont start, lights work, but when key is turned on starter wont engage, lights dont dim, radio, horn, pw, wont work. If i run a jumper from bat to starter starter engages checked relays and fuses any suggestions?
Think it has to do w/ baby blue wire on ignition switch itself any idea what this wire is for? Thanks Bob

I'd think with power on and windows etc not working, then the ignition switch is faulty.