I have an old jonboat with an old trailer. I made my own pvc guide on post and attached my trailer lights near the top of the pvc post. The<br />pvc pipes are 4" dia. and pretty thick, so they have no problems supporting the lights. The problem is the lights just don't work properly. The lights only come on when I turn on the head lights, but then only when I take my foot off the brake and turn on when I let off of the brake. The turn signals work. I have gone over the wiring a dozen times and everything looks right. What am doing wrong?<br /><br />Thanks!