Also, interesting to note that Marija Gimbutas said that the way Homer described Patroclus burial (no matter if this character never existed) with cremation on a pyre resembles the Urnfield Culture from Caka and surroundings.
I am of the opinion that the Urnfield way of life, or Urnfield Cultural complex was formed when the Tumulus warriors invaded Pannonia and Carpathia, especially Eastern Carpathia where they mingled with native people and then re-expanded giving influence to the Urnfield way, it doesn't have to be a complete invasion, just partial/minimal, and partial more like religious/idea spread. Just notice how cremation was mixed with mound burial, something which historical Dacians, Enchelei, Dardanii used.
The Bronze to Iron Age transition was a massive event, you see turmoils everywhere in Europe, causing domino-effects of migrations.
That's exactly the transition from F?zesabony-Otomani to Piliny to Kyjatice on the one hand and from Suciu de Sus to Lapus I and Berkesz-Demecser. Lapus I and Berkesz-Demecser picked up such influences from Carpathian TC/Egyek, but this was primarily a cultural influence, because there was no major successful taking of the areas East of the Tisza. Piliny on the other hand had more direct contacts with TC, especially in the Western areas.
The major Carpathian TC group being often associated with the site of Egyek:
https://en.wikipedia.org/wiki/Egyek
The pick up of Suciu de Sus locals resulted in Berkesz-Demecser and Lapus I.
You can look up were Berkesz, Demecser and Lapus I - as well as Suciu de Sus are. Berkesz and Demecser are in the very, very North East of Hungary, Suciu de Sus and Lapus are deep in North West Romania.
So you have Carpathian Tumulus culture -> Piliny -> Berkesz-Demecser -> Lapus I -> Suciu de Sus.
That's the decreasing TC influence. Suciu de Sus is the "pure local" element which transitioned to Lapus I (Lapus II = G?va province) and Berkesz-Demecser (from which main - Western - G?va developed).