Is there a full-time 12 volt hack for a 200 tacoma?

Hey guys. I have been searching for a way to get full time power to my 12 volt outlet. Right now it's controlled by the key. But i want to be able to charge things while not leaving my keys in the ignition.
I could jury rig it but i would rather do it like i did in my old 2003 tundra. I jumped a wire in the fuse box for that. Problem is that i no longer have that truck and i can't find the instructions online. I also don't know if it's the same for both trucks. I would assume its going to be simular.

Anyone better than me at searching for this? Post me a link, please.

 

You are just asking yourself for dead battery, aren't you?
Not sure if you have the same, but 2003 Power outlet is switched on by Power outlet relay that is turned by turning the key to ACC position. You can just short that relay contact and power outlet will have constant power.

Note, that is different circuit from cigarette lighter.

 

∆This. Engineers call electrical transformers "heaters" for a reason. And even if you have a 5V USB charger plugged in and not charging a device it'll end up killing your battery. Food for thought...

But here you go:
https://www.tacomaworld.com/threads/power-outlet-mod.62495/

 

Behind your stereo will be at least 1 wire that is constantly 12v. 10 minutes with a mm, 5 minutes for a good connection and youre done. You can bypass the relay as well but that leaves more than just the power outlet charged.

 

Run a wire from the battery install the proper circuit protection .

Be ready to jump the vehicle often

 

Thanks rysuim. I could run a hot wire from the battery to the 12 volt outlet but that is a tad hokey. But that will be a second option if i can't make it work using stock wiring.

Thanks to everyone for showing all the concern over my battery. It's not a big concern of mine. I have a charger that has a little red led that stays on while it's got power. This charger sits idling in the truck for weeks on end with no ill affect to the battery. No slow cranking over. I am not worried about a dead battery.
There are other electrical issues If your charger is draining your battery over night. Maybe time to purchase a new charger.

 

Your battery isn't going to die because you have a functional charge point. Almost every vehicle in existence has one. My taco was the first vehicle in 20 years that did not have one and it didn't take long to fix that failing.

If charging your cell phone kills your car battery you have issues other than the phone.

 

Most USB cigarette/aux (or whatever they want to call them nowadays) 12V adapters I've tested, while plugged in but not charging a device have a parasitic draw of 100-800 mA.
All those adapters will kill a battery eventually if left unattended from a constant un-fed source.
RadioShack brand dual port 3.5A and the adapter that HamRadioOulet sells on their site are the only ones I've kept. W/ 30mA and 12mA respectively... Those are the best I've found and low rfi.

 

I jumped the pwr outlet relay like 6+ years ago on my 2004 dbl cab. I have a phone charger plugged in all the time, too. I've NEVER had a dead battery. Not even close.

Only when it stopped being my daily driver and it sat for over a month did the battery go dead.

 

I have mine on constant 12v and I have a USB adapter in it 24/7 with an led and have never had any battery issues.

 

Well good for both y'all. But I've found the opposite in my experience. And that goes my forewarning.

 

Just curious, did you have any other loads on the circuit? How old was your battery when you experienced these results? Just curious so I can compare to mine

 

I used an old female Cig adapter included from a pos 100w Walmart inverter. Soldered ring terminals and used a fluke 87iv for a multimeter to test amperage. Battery was at 80% and the transformer was the only load.. Sears diehard marine 31m, 105aH. Battery is was three years old

 

Thanks for all the replies. And thanks for having some common sense. Having a dedicated 12 volt access would not kill a battery, nor would charging a dead phone battery everyday. Assuming one drove that vehicle and that the battery, alternator, and vehicles electrical was in order.
It's ludicrous to think that one will have to start planning on jump starting their truck.

 

That is why I always run a new circuit direct from the battery

 

It's not ludicrous. I've had it happen. I've killed a battery with a car rarely driven w/ a parasitic draw.

But if drive your vehicle regularly, then yes, you probably have nothing to worry about.

 

A car battery with a 40ah reserve and with a 40ma draw will discharge in about 41 days. Your mmmv based on your battery.

A 12v socket without anything in it draws exactly 0 amps. There is no parasitic draw when it's not being used.

Again, if plugging in your cell phone kills your battery there are other issues.

 

Jumping the power outlet relay was an old trick when I did it in 99.

There are no other loads at all and the circuit is fused. It's pointless to run a separate dedicated circuit. The 99 and 2000 diagrams are nearly identical as is the 03, including the black and white "overall" diagram showing every wire in the truck. There was some scant "reporting" of trouble with the radio or something in the later years (04?) but you know how that goes.

 

There are three base circuits which can drain your battery as they are connected directly to battery (via fuse of course) without any modifications: Body ECU, ECM, clock and radio. The base draw is really minimal but still it is. This is why for example shipping or store a car you need to disconnect the battery.

 

Which on a 1st gen with stock audio and no alarm amounts to all of about 10 mA.