Help with off road bed outlet mod.

New member and Tacoma owner here. I've tried searching around and haven't had any luck, is there a modification I can do to allow the outlet in my bed to always have power available to it regardless of whether the key is on? Truck is a 2005 DCSB OR.
Thanks in advance.

 

Search 400w anytime mod.

I have it done, doesn't work right but I have it done

 

Why doesn't it work right?

 

It'll work with my clutch in or out in gear but as soon as I start rolling it shuts off

 

Wouldn't this just kill the battery?

 

plug something into it, and see how long u can run it, before u cant start your truck, and u will have the answer u seek,,, simple math.

 

I think I'll just end up buying a second battery and a power inverter with clips that attach to the terminals.

 

Second battery and a battery isolator is what you'll want to get. You can drain the second battery till its dead and the main battery won't be touched.