I'm not sure if mine was 12v when I initially started this thread but I decided to keep the battery in mine. I simply just slipped my remote control in between the carpet and the centre console just beside the front of the drivers seat. That way, all I had to do if I needed to replace the battery was simply reach in between the carpet and the console and slip out the remote (I gave it enough spare wire length) and replace the battery. Simply slip in between again when done. Problem solved. I didn't want to start installing the remote somewhere where it was going to be a real pain to get to.