Have power but having intermittent staring problems

Could be any number of things - dodgy connections, relay, starter motor...
It could equally be an ignition switch problem or the part of the steering lock that drives the switch.

If I was involved and couldn't find any obvious faults I would fit some temporary telltale lights to the circuit and note which lights and doesn't light when it doesn't start.

Ignition switch is likely worn out making intermittent contact.

check the clutch start switch or the park neutral switch operations
you need the clutch in to start and there wia switch there that may need adjustment
same for the auto park /neutral switches
check wires

It could be the neutral starting switch..You can wiggle the gears and it will start

Have you checked for power on the major fuses that power the engine controls and instrument cluster ?
Could be a problem with the key switch or a relay depending on the make model and year.

Check starter solinoid

hi
I assume it could be the key barrel
the brushers sticking on the starter loose /corroded earth cable to the engine or solonoid breaking down

Try boosting the car,if it always starts then you either need a battery or you need to clean your cable ends.If this does nothing for you then replace the starter relay.

try getting a boost for your car.... the battery may be failing. it doesn't take alot of power to turn on the lights... but a huge drain on the battery to start it. if it will not start with a boost i could very well be that the starter has failed. as you attempt to start it... have someone tap the starter with a hammer. if it starts... replace the starter.... if it starts normally with a boost you likely need a new battery

u might have an aftermarket alarm 2 if u see a flashing red led light on dash look for black box under dash if u see fuses that are in that wiring of the black box pull them out and then try to start or look for a valet mode switch under dash turn on key and flick switch then try 2 start