sorry for this trivial thread but as the title states my 'door open' warning light on the dash and the interior light wont turn off

i washed my car about 2 months ago and from that point my door open lights wont turn off. The alternator was dying at that stage (although i didnt know that at the time). Its the "dome" fuse in the drivers footwell, i replaced the fuse, no change, and i checked the door jams just incase one was stuck in, thats all ive done really. atm i dont have the fuse in as i dont want it to drain my battery

anyone have any ideas on what could be wrong?

im guessing its wiring but i dont know where to start if i have to trace through that specific fuse to find the problem.

any help would be appreciated guys

thanks