Illyrians were a mix of EEF, WHG and IE, just like Albanians and all other ethnicities are(minus Sardinians, no IE & Caucasus in them). J2b2 was Indo-Europeanized in the Steppe during the Bronze Age, or prior to it, by R1b when it was in the Balkans.
R1b is not Anatolian originally at all, but...