M1009. Class III with a 4 and 7 pin connector spliced in to the existing wiring. Everything works great, except when I plug my little 5x8 trailer in (any trailer) I get a very rapid flashing when I used the turn signals. Note, everything works as it should, it's just that the turn signal is very rapid. Is there a different flasher unit required or do I need to do something different?
Thank you.
Thank you.