Even after Murry's formal business relationship with the Beach Boys ended, he remained in close contact with the group, letting Brian know his thoughts about the band's decisions. Brian also periodically sought advice from his father. In 1964, Murry sold off his machinery business and separated from Audree. On August 7, he wrote a last will and testament that stated, in part, " told me on this date ... that she did not enjoy intercourse with me anymore ... I am a very unhappy and broken-heated man about my family." Although their marriage ended in divorce in 1966, they remained closely involved with each other until his death. According to music historian Mark Dillon, it has been alleged that Wilson had one or more extramarital affairs, "but whether this was in the aftermath of his separation from Audree or was ultimately the cause is not known." Biographer Peter Ames Carlin suggested that Brian's song "Let Him Run Wild" (1965) was inspired by Murry's affairs.