Technics Reciever

I bought a Technics Model Number 
(SA-8500X) 4-Channel Quad Reciever off of EBay & the Tuning Meter Cord, String was
broken & I have one here in my Parts, but this looks very hard to put on but is it hard to do?
this was there Top of Line Model in 1975. The Sechmatic isn’t very clear on this!! So how hard is it to put a different white string on?

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