use black silicone to make it blend in better, too. goto a hardware store and look for stuff that is suitable for using on plastic. my depo JDM style corners are leaking, but i've been too lazy about re-sealing them. if there's water in them at all you should take them out and do the best you can to make sure there's no moisture in there. put them next to a heater, or something, but not so much that they'll melt/warp.