I'm looking fit a push button start to my Honda ek as my ignition does always turn so through I would fit one but was thinking how I going turn the car off if key won't move from 0 was thinking a kill switch but what you wire it to ?

 

What type of push button?
your ignition "does" or "doesn't" always turn?
Kind of confusing to understand what you are trying to say.

 

I would fix the lock. It isn't much theft protection but it is better than nothing. These cars are in very high demand by thieves.