Just washed he van off for the first time this year and managed to knock of a marker light lens which broke and the MTPLM/MIRO plate. Light lens replaced as a matching clear pair, but I do have to re-attach the plate. Does said plate have to be mounted outside by the door or can I stick it on the inside near door ? I ask this because as I finished cleaning the van in brilliant sunshine and then arriving home to a hale storm I get the feeling its going to be wet until next w/end so glue might not stick. If plate has to go back out side what sort of glue should I use ?