Toad wiring harness diodes question

[2k05GT]

I have the Curt wiring harness for my 2017 Ford Flex, it has diodes to protect the cars computer but I am using the RVI brake system so can I put diodes at the plug that goes to the RV to protect the RV lighting system.

I purchased the BlueOx 4 diode kit, will this work? Or can I just put single diodes on the brake, Left and Right Turn Signal wires?

[2k05GT]

So I guess my question was wrong, no one knows or it's in the wrong section..

Since I was in a hurry, I had to improvise and guess..

If anyone wants to take a stab at it and say it's right or DONT DO IT YOU WILL BURN DOWN YOUR RV.....

Here is what I did...

[2k05GT]