Unfortunately, I believe I have confused you.

Your “Rebel 21” circuit wiring kit is a very thorough kit with great instructions and tech support. From my understanding they provide a complete wiring kit labeled, fused (even the fusible link) and ready for installation with control leads for any relays you’ll need, along with recommendations for relays, wiring the relays and placement.

To avoid any further confusion, may I suggest that you follow their instructions and tech advise.