This is the issue I had 4 renogy flex panels- the company placed them on my 2018 promaster and one flew off - noticed it when I got home - they where not connected in wiring yet _ the panels where purchased in dec 19 then covid - where place on the vehicle 07/21 and the 3 left sat on the top of my roof not wired - took them off on 10/1/21 did I do any damage to them by not wiring- Next issue renogy no longer make 160w flex only 175w flex - can I replace the missing one with the other 3 - 160w flex with no issues or is there a wiring issue - need some help here - the company that f it up are being sued by others at this moment…🙏🙏😇oso