The start (ignition) fuse I think is the only one in the drive side fuse box that has constant power. I have power for my homelink mirror wired to it so I can open/close the garage door without the car having to be on.
A dedicated line from the battery works, too, of course.
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2011 370Z 6MT Sport Gun Metallic | ARC | CJM | Ecutek | FI | Fujimura | R2C | SPL | Stillen | TWM | Z1 | ZSpeed | |