Yes you potentially could drain the battery using the ports while the car is not on. If you want the new outlets to be switch powered then you would tap into existing 12v switch wire or fuse (plenty to be had). I personally would make them hot all the time since you already have switched outlets up front. difference between the add a fuse method or going directly to the battery is with add a fuse your sharing the supply wire (this could be a issue depending on the gauge wire supplying the the current to the fuse and cluttering the fuse box with another wire. With going directly to battery it more reliable connection.My apologies for not including that, 2015 XLE.
And what would the difference be of running straight from the battery vs the add a fuse option?
If the plugs are always hot (and nothing plugged in) will they still drain the battery? Or would having them switch on and off with the ignition be better?
You can add switch or just unplug anything that could potentially drain the battery sitting for a long period of time. I mainly use my outlets for charging phones and light duty stuff so I'm not worried draining the battery overnight (worst case senerio for me). You ground the outlets at the location, I go directly to body or share another ground if available.I suppose if I went from the battery back, I could just add a switch in myself to turn them on or off as well...might be an idea. So run one hot wire from the battery to where they will be located and then ground wires for each switch?
Ebay has them that will plug into the dash switch blanks. Just verify the switch dimensions are 22x33 mm. Try this linkOk, that is good to know about the USB ports. I drive a short distance everyday for work so I am not too worried about the drain, I may still try the switch idea. Any idea where I could fine a switch to make it look factory? Such as to fill in one of the blanks by the eco/sport buttons? I have a few ideas, I just will probably play around with it.
Thanks, I found some on amazon hereEbay has them that will plug into the dash switch blanks. Just verify the switch dimensions are 22x33 mm. Try this link
for a idea of switch type I'm talking about.
33x22mm 12V Blue LED Illuminated Switch On/Off For Toyota Landcruiser Camry RAV4 | eBay
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I have purchased similar switches and I would say it's for the switch illumination. At least that's what it has been on all the other switches.
Using 10 gauge wire is just overkill. A good 14 gauge stranded wire is more than adequate. As for the fuse, it's only purpose is to prevent a fire in case your wire gets shorted to ground. For that reason, you want as much of the wire as possible to be protected by the fuse. Therefore, putting the fuse as close to the battery as possible is the way to go. The power feeding the cabin fuse box is going through a large fuse close to the battery.I was thinking of using 10 ga for it all and wiring in 15 amp fuses before each plug and grounding at each plug. Wouldn't it be better to have the fuses in the cabin where they are easily accessible?