Just had all the dash off to grease the speedo cable as its jumping a bit at low speeds on my willy. Got it all off, but to be honest didnt really know where to grease. I put a bit on, and i noticed that there was a little bit of rust colour on the white plastic bit (end of the cable that comes from below), so im figuring it may be a bit rusty? Anyway the ticking noise has gone but still jumps (although not so bad). So where exactly do i need to grease and how much? I have LM grease.