Rear view camera always on 2015

2015 dclb Trd sport. Wondering how hard to be able to get the rear view camera to come on when I want. Is it possible with the new h.u? I just sometimes want to know that my gate is shut without shifting to R. Any ideas

 

It's not a hard mod. You just have to apply power to the reverse signal wire though a switch. When you put 12V to it the HU will power up the camera and display the image. I know where the wire is on the 2013 but not sure on the 15 so I'm not going to elaborate where it might be.

 

Its a bit more involved than that. You have to make sure the switched 12v is not sent along that wire back to the ECU or you'll trigger a check engine light. I couldnt find the tutorial but this is the basic schematic you'll follow. You'll need a SPDT switch with an add a circuit to get the 12V. You'll be cutting into the wire going to head unit from the ecu. A little scary at first but worth it for me.

 

Just add a diode?

 

You could but you'd still cut into that same wire. I've read where there are cheapy diodes out there which don't do their job after a while. You need a switch regardless, why not make it an SPDT? Here's mine, nothing fancy. I use it every time I pull forward into the garage so I know when i've cleared the door.

 

If osmeone decides to do a step by step write up of this mod, I'd be very interested for a 2014. I like the idea a lot.

 

I think this is the write up i followed: https://www.tacomaworld.com/threads/2012-reverse-camera-switch.204199/page-2#post-6705075

 

Thanks @Robman! any idea if i Have an add a fuse to the ACC already, what is another good circuit to go to?