By 1989 , the duo had relocated to Phoenix , Arizona .
By 1989 , the duo enlisted the aid of Karl Geist on bass guitar and keyboards , Ivan Koci on guitar and Jing Laoshu on percussion .
By 1989 , the duo had relocated to Phoenix , Arizona and enlisted the aid of Karl Geist on bass guitar and keyboards , Ivan Koci on guitar and Jing Laoshu on percussion .