Need Help: Wire Rock Lights to Switch and Dome Light

I have my rock lights currently ran to a simple ch4x4 switch. See diagram below.



I want to get a little fancier with it by tapping into the dome light via the A pillars blue/yellow wire. However it is a switched circuit and is a little more complex than I had hoped. I am thinking I may have to use a relay but I am stumped.

Long story short I want to be able to turn them on on demand via the switch and have them come on whenever the dome light is on. (Opening doors, unlocking truck, etc)

Can someone help me finish this diagram?

 

Bump. Anyone?

 

Bump again. Could really use some help here gents.

 

For what it is worth.... I ended up figuring this out and about to start selling the harnesses here.

https://www.tacomaworld.com/threads/dsims-dome-light-harness-for-rock-lights.545892/

 

https://www.tacomaworld.com/threads...ts-reverse-lights-and-footwell-lights.520355/

if anyone stumbles across this thread in the future. This is super descriptive.

Btw, did you put an inline fuse on the red wire to the battery?