metra 70-7003

What now when Metra 70-7003 is not exactly working?? I am trying to install Pioneer Avic F500bt (with Amp nd-g500 ) on my 2002 Mitsubishi Eclipse Sypder GT. I bought Metra 70-7003 in hoping that it will take care of the wiring But Metra 70-7003 does not match the ISO connector ND-G500 has...