Ma'anshan dialect problem

Ma'anshan is a city of immigrants, and the dialects in the urban area and the county town are very different. Because the urban area is relatively close to Nanjing and is basically composed of immigrants, the pronunciation is close to Mandarin, but the tone is indeed very similar to Nanjing. But Dangtu County is different. My wife’s grandfather is from Dangtu County. He is 80 years old this year. He should be considered a native of Ma’anshan! I couldn't understand a word of the Dangtu dialect he spoke. Although the Dangtu dialect also belongs to Hongchao, there are still big differences. In some places, the words and tones are completely different, forming a It is a language style unique to our Ma'anshan.