Best method to run wires from top lights?

Hi, need advice on how to run these wires into the cab.

I want to install 2 lights on my roof rack (rear) and for now I want to have them spliced into the reverse lights. I have limo tint in the back and it would help a lot.
For now I want them to come on with the reverse lights only, so I was thinking to splice them into the reverse lights wiring. I hope I wont trigger a fuse, I have 2 Lasifit leds for rears and will install these:

$17 Nilight Led Light Pods 2PC 4" 60W Flood Spot Combo Triple Row Driving Lamp Roof Bumper Off Road LED Work Lights Pods for Van Camper Wagon Car Pickup Golf Cart ATV UTV SUV Truck Boat 4x4

https://www.amazon.ca/Nilight-Drivi...hild=1&keywords=Nilight&qid=1607704484&sr=8-9

Any ideas for best cable routing without drilling ?

 

they don't specify the wire gauge, looks like a normal wire to me
i still use the XM radio now, yes. I assume that is also the antenna for the data link (app remote restarts and all)
My initial idea was to run it between the body and the hatch top, there is plenty of room for a wire to not get pinched and run it along the side by the weather strip...and I stopped there to see what other are doing.

 

that's actually a neat idea, via the wiper setup, I will have to look into that.

 

Almost reminds me of roof cement

Now I'm interested to know what exactly it is, I could probably use some of that on something I own!

-J

 

Am i correct here: I see the tail lights are on their own fuse 10 amps and the backup lights are on a separate 10 amps fuse- this leaves me with 120 watts to work with minus the current running LEDs as backup lights. Assuming those are 10 watts each (I think they are 5w, but meh), I still have about 100 watts to use for the additional rear lights.
Now, they claim 60w each, however, the numbers have been proven very exaggerated, it was measured at 19w each.

So I should be more than fine to run them both without blowing a fuse or triggering any other issues ?

 

how or where would i find more data about the OEM circuit ?

 

Oh yes. 2020 off road.