Got myself one of the MSD radiator fan looms for my 3 door. I'm no auto electrician but it all looks pretty straight forward. One thing I'm not sure about is the original fuse location. Under the cover of the fuse box it looks as though there are two fuses with fan symbols, one noted as number 4 (30A) and number 20 (25A). Does anyone know which one of these I need to pull, or is it both? The instructions don't mention having to remove a relay, is there a relay I'm suppose to take out as well?

Here are the two fuses in question: