Lets have a stab...
I see three cables.
Black should be earth, connect this to ground.
white i GUESS would be side lights (as they are white), connect to side light positive cable.
red i GUESS would be the orange indicators (as they are orange?!?), connect to positive cable for indicators.
Best way to test is get a 12 volt power supply, or battery and attach the black to earth, and then touch the red or white to confirm.
!! WARNING !!
Our cars use resistance levels to tell if a bulb has blown, wiring these up WILL cause issues. Mainly the car thinking the bulb has blown. But also as you are earthing to the car (as there is only one earth connection, i wouldn't earth to either the side lights or indicators) you could cause other faults.
!! Proceed with caution !!
Hope this helps.