Note that you have to have a minor action to begin with in order to spend the action (and then you gain a minor action back). It is not really unclear if you ask me (but I guess it could be improved).
Wired Reflexes IV give you +4D6 for a total of 5D6 initiative (or 1 major and 6 minor actions).
The limit of 5 minor actions is stupid. It just complicate things and it add no value. It should be removed (or increased to 6 minor actions to align with the maximum of 5D6 initiative dice). Having said that, depending on your reading it would be rules legal to spend 1 minor anytime action between the start of the round when actions refresh and when your turn start and you get limited to just having 5 minor actions. Still stupid though.
