Elect Issue, new LED turn signals, now rear flashers are flashing

I have 98 International 9200 with a reefer body on it... straight truck...
I have installed new LED front turn signals on it and to make it work, I added resistors to prevent hyper flash.
All worked good for about a day or 2.
Today, my rear flashers are going off non stop. Truck running and truck off, they are flashing. When I turn the turn signal ON, they go back to normal.
Any ideal what the hell is going on?

 

Phillip's socket connector?
Oddly enough, when I take out the turn signal relay, the blinking stops.
Whats most surprising, is that when the truck is OFF and key out of the ignition, they are still blinking in the back....

 

Makes sense, but this truck is a straight truck with a reefer body on it.... no trailer. I will crawl under and see where the main wire harness is connected to the body.
Thank you

 

Thank you, I'm going to take the LED turn signals off and put the old ones back on. Wiring has a resistor on it as without they wouldn't work. I think its too much for the old system.
Signal start - is that the turn signal relay?