[Healeys] Adding a starter relay question

[Linwood Rose]

For those who are more knowledgable than I regarding automotive electrical
systems (that should just about include most of you!), I have a question.
The application is not a Healey but I figure someone here will know.

If I wanted to add a starter relay to the ignition/starter wiring system
system. Should the relay go between the solenoid and the starter button, or
should it go between the ignition switch and the starter button? I assume it
should go between the solenoid and the starter button thereby relieving both
the button and the switch. However, I know it is always better to ask than
assume.

Thank you!