Tesla install instructions for the lightbar.
https://service.tesla.com/docs/Cybertruck/ServiceManual/en-us/GUID-3FB15C20-B219-4700-A53A-D946616091A9.html
I have owned my truck for one month, just made my first payment and I have only had it in my possession for 7 days. The rest has been with Tesla in the service department.
I am not happy with the poor quality control and how equipment is failing on the truck.
It took about 2 weeks before the company that was contracted by Tesla to reach out to me.
They may ask for photos of your panels, where you may want it and a good picture of the breakers.