digital clock in centre console
 

hi folks,am in the process of fitting a new centre console in my 93 classic,due to the old one being hacked to bit sby the previous owner to fit gauges and a electronic boost controler,the old unit had the pull out drinks holder at the top,so ive took that out and am going to replace it with the one with the digital clock at the top,however there is no wiring for the clock there,so could anyone or would anyone please know which colour wires in the clock block connector are,there are 5 wires in total

1,yell/brownish red
2,red/black
3,black/red
4,green/red
5,blue/red

i was going to assume that the black is earth,the red positive 12v feed,yellow 12v ignition/memory not sure about other 2.
please reply as want to get it done today