Need help with turnsignal switch c 10 1966

[Mike c 10]

Hello !!
I ve a 1966 chevy c 10 The original Switch on the steering wheel for the turnsignals and horn was missing. I couldn t get one over here..so I bought a universal turnsignal Switch with emergancy Switch. van someone tell me how I can conect this one to the original conection that is under the dash..... I ve make some pics and I ve numbered the original conection under the dash... 1 and 5 are going to the breakswitch and 4 is the horn. I ve 7 cables on the new one bu where to go...thank you for your help Many thanks Mike