Both Blinkers blink when i turn on a turn signal

[Papa_Complex]

The LEDs should only light with current in one "direction." If the potential in the frame rises above the level of what it sees through the relay, then there shouldn't be any light given off. At least that's the theory.

I am wondering where the wires heading off to the right go though. As you say, maybe that's the dash indicator. Adding a power diode in that line, before the signals, might be enough to stop it.