Angel Eyes with Momentary Switch

Hey in need of some help with the wiring of a momentary switch that i have in my car, i'm planning on using the VW 111941583 relay as it is a latching one where when i press it, it will turn on  then when i press it again it will turn off. In the diagram where the master switch is, thats where i plan on putting the VW relay with the 12v coming from the battery, pin 56a will goto pin30 and pin 56b will goto ground. This setup will allow me to turn the DDE on when the IGN is off but i was just thinking when the IGN is on, is there a way to turn off the DDE? Been doing some reading and i also saw a flip flip but perfer not to use it cause i can't build it and i don't mind using another relay.