Jaguar water intrusion

Need some help with this one guys. Got this jag that originally came in for a Start then Stall condition. When I got to it it was a Crank No Start with No Fuel Pressure and about a million codes in every module. Ended up being the Fuel Pump was not being commanded on. I found almost all of the Central Junction Box Connectors(behind passenger side right kick panel) were badly corroded. Once I cleaned the connectors the Car now Starts and Runs and most of the codes are now gone, but I wanted to find out why the Connectors were corroded so I ran water over the top with a garden hose for about 10 minutes and found no evidence of water intrusion besides the corroded connectors. I can see the sunroof seal leaking a little but it appears the sunroof drain is handling it, i pulled the a-piller trim and looked at the drain hose. All of it looks good. No evidence of moisture under the carpet on the passenger side, no musty smell and no evidence of water dripping from above or behind a-piller trim. So just to be thorough I ran the A/C for 5-10 minutes and no water is dripping from the Evap housing. Turns out from what I can find the Evap drain is above the Transmission and the dash is likely going to need to be pulled to gain access. Has anybody dealt with the HVAC systems on one of these? Its seems far fetched to me that the water could travel all the way past the blower motor resistor, blower motor and cabin air filter all the way over to where the junction box is located without any traces only to cause corrosion in the connectors? I am still going to recommend cleaning the evap drain to prevent further problems. Am i wasting my time to try to fix the evap drain for this particular problem?