My special order, 2019 XL did not include fog lights because of non desirable package inclusions. Having studied systems, concluding the BCM will not accommodate aftermarket fog/driving lights. That the only recourse is wiring directly to the battery. Is this correct?

 

The BCM is software with a bunch of on/off tags. There are few functions that cannot be enabled by adding the hardware (switch, fuse in your case) are toggling the software with FORScan.