I don't know if certain locks are more universal, but my standard enfield key opens all 4 of my locks (steering column, ignition, gas cap, side panels).
Mine is an '09 Electra but they're probably all the same.
You could probably also jury rig it to not need any keys if you were handy with some power tools. I bypassed my ignition switch cause it was shorting out on me.
Hope this helps!
Chuck