Hi All, I have today found my passenger foot well flooded with water and have learnt from this site that its the drain plug under the battery, My question though is what will happen to my radio if i disconnect the battery, i do not have the code as the previous owner never passed it on? I think i need to remove the battery to properly clean out the blockage? Will the code be lost or do i have a time frame to have it connected back on the car? any advice much appreciated. thankyou.