Could someone please help me. I'm installing iSimple ISTY651 iphone integration to my car 2006 is350. Everything was connected but the head unit couldn't get in SAT mode (ISTY651 operate at SAT mode)

so far what i did is connected y connector from ISTY651 to head unit using one of the connector on the back of radio. just look like you guys installed vaistech linQ unit.

Anyway, my main problem is cannot get into SAT mode

 

it's power on now but no sound