Need some guidance on hard-wiring a phone charger

I’ve purchased this Tundra-specific mount and this iPhone 12 Pro holder from ProClip USA; a vendor of vehicle-specific and phone/tablet-specific charging cradles that I’ve used for many years and many cars. I will insert into this particular model a brand new Apple MagSafe charger, so I can get the potential maximum of 15W for ultra fast charging.

I am, however, notoriously picky dangling cables and things in my car. So, I plan to hard-wire the MagSafe charger behind the dash.

Should be straight forward enough…drill a little hole to feed the USB C cord through, and install some kind of a USB-C charger behind the dash that it plugs into.

But how do I wire that up? I have two core requirements:

1. I don’t want to change any factory wires if I can avoid doing so.
2. I want the charger to be always-on, even with the engine off. None of the other power sources in the car are like that, so I can’t tap into any of them.

Can anyone offer some specific step-by-step guidance?

 

Use a ad a circuit fuse tab and put that one in the top left slot on the cab fuse panel. I have a 2018 Tundra too and you might have the same tab empty. It has permanent power. It has permanent power.

 

So, I haven’t used add-a-fuse things before. My 4Runner mods all soldered wires tapping into existing power supplies. (I had another mod that replaced some jumpers in the fuse box to get constant 12V power throughout the car).

So not entirely sure what I’m looking for. Would this work for what you’re suggesting?

$11 Nilight - 50040R 12V Car Add-a-Circuit Fuse Adapter with Standard and Mini TAP Profile TAP Blade Fuse for Cars Trucks Boats, 10 Pack Fuse Holder-3 types, 2 Years Warranty,Blue, Red, Black

Nilight - 50040R 10 Pack 12V Car Add-a-Circuit Fuse Adapter with Standard and Mini TAP Profile TAP Blade Fuse for Cars Trucks Boats,2 Years Warranty

 

yes. You put a fuse on the bottom one on top. 10-15A is sufficient. This usually are for tapping into an existing fuse but you can use it for that empty spot too

 

Pardon resurrecting this thread, curious if you left the fuse cover off or maybe I just got an usually large one that won't allow the cover to be placed back on the fuse panel?

 

Leave it off. I keep mine in my door panel pocket

 

For something like a phone charger, an add-a-fuse is probably fine. For a radio or something that needs clean power, I'd use the add-a-fuse to connect to a relay, then run the relay direct to the battery.

 

left it off