I keep blowing the fuse for my brake/tail light. My parking light works fine when ignition switch is turned all the way to the right but I have no tail light and no brake light in regular on position. The bulbs work, I put in a new fuse and lights worked for a minute then fuse blew and no light again. Changed fuse twice and blew again and again. Any ideas would be great, brought it to the dealer and they took quick look, shook their head and said you have to leave it with us because electrical problems take a while. I understand they need time to look it over and it will be under warranty but couldnt leave it with them today. Any ideas would be great, for all you Mechanics out there.