Hi all, I have a dance headunit which has been refitted after a aftermarket one has been removed, on diagram below it only has one permanent live going into the left row next too can low and hi. Where the bottom left has a * it says that for dance on the unit, but there's no wire going in, I have one permanent live going in where the +Us is and no other wires in that row of four. I'm sure it's missing one, help please

Edited 19 March, 20179 yr by TrevorB33

For info I resolved myself just by luck the octy 2 headunit has similar inputs, it needed a permanent live to safe and +Ub split from the same feed wire