Creda Solarplus cooker regulator?

I have a solarplus model 48342 and the twin grill regulator went. Bought a new one but wiring is different. I followed instructions provided on replacement but have light blue wire (goes to indicator light on front) with no spade to connect it to. It should go to no2 (adjacent to black on old regulator). At a guess, black is supply and when current drawn it lights the orange light on cooker. How do I connect the light blue?
Old wiring -
Yellow - P2
Purple - S2
Red - P1
White - 4
Black - 2
Light Blue - 2
Regulator is 6204036 from Creda spares in Southampton, but they are not able to help with details! Like I say there is only one no 2 spade on regulator. Should I try and get piggy back connector?

Any ideas please?