Wiring dash electronics

[Donstar]

I have purchased an aftermarket camera system for dashcam duties and rear vision assist with my travel trailer.  The monitor came with a plug for the 12V(cigarette) socket.  The system works well but I would prefer a more discrete power source and I would appreciate any suggestions for a minimally invasive option to tidy up the wiring.  I am also planning to locate a camera in the front grill.  It is wireless so what would be my best source for power?  I am not a fan of splicing into other circuits and would rather have a separate path.  Thanks!

[1SLOW1500]

There is a connection in the drivers side fuse box. RAP wire so all you need is a ground ring and go to the a pillar bolts and then a female spade connector to the single rap connection. 

[Donstar]

4 hours ago, 1SLOW1500 said:

There is a connection in the drivers side fuse box. RAP wire so all you need is a ground ring and go to the a pillar bolts and then a female spade connector to the single rap connection. 

Thanks for your response. I will take a look at the side fuse box and use this as a destination for my cable.

[Donstar]

During the camera install I stumbled across wiring by my canopy(topper) installer.  In my canopy I have a light and 12V plugs that are always live,  There is also a centre brake light.  The installer ran a black and a white wire to under the dash.  The white is spliced into an individual wire found in a bundle going into the junction box.  The black is connected to a spade terminal in an empty slot in the junction box.  At first I assumed the black was a ground.  Upon further testing, I found that the black is actually full-time live and operates the canopy plugs and light.  The white is for the brakes. (Ground must be picked up elsewhere).  During my testing, unplugging the black resulted in nothing working.  While I was still thinking it was a ground,  I relocated it to another ground and the brake light worked. (Not the plugs or light) I put the black wire back to its original spot and everything now works as before.  However, I like to know why my brake light only worked when the black was hooked up to ground or power.  BTW - Forum member Phil (pgamboa) makes harnesses for aftermarket installs of all types.  Before splicing, tapping or hacking into your wiring I recommend sending him a pm. His harnesses will make your install a plug 'n play and save you time, aggravation and probably money!