Sitting in NJ traffic my girlfriend got water in the rear seat compartment rendering the radio, backup camera, and navigation useless with only a LR green oval and blinking light. Once we met back up I took apart every piece from the rear left compartment and sprayed all the connectors down with WD-40 and pieces of the internal parts (I’m not an expert none of this should be considered advice), and placed supplemental garbage bag water shedding device this time over the electrics.
I also noted the red light from the Bluetooth module was no longer blinking, so I bypassed it by looping the input thru the output using toslink fiber optic cables and duct tape. The duct tape does get too hot to hold the fiber optic connections in place though so I have to leave that connection outside of the electrics area. We are going to update the Bluetooth module to a later version with the help of a forum guys electrical splicing magic.
10/2020 UPDATE: These MOST bypass loops are now readily available and pre-made off of ebay for about $10. Please note though, on FB and elsewhere it is clear that Main Dealer Jaguar Land Rover dealerships will not install these parts for you. It does not mean they will not work. It may make sense to bypass parts yourself before asking, especially now that they can be had off of ebay using the search term “MOST bypass”. Or by using the ad link below (fulfilled by amazon, I may get a few percent of any sales, maybe).