I just purchased a P3 brake controller and had a question. Does it have to be level? I saw several posts regarding the Prodigy that it could be at up to 70 degrees and the instructions stated this too. I do not see this in the P3 instructions and was curious if anyone knew?

OK, finally got through on the Tekonsha phone line. They say 0-70 degrees is best, but that it will even work at basically vertical.