my unit is avh-x1150 reading the manual it say that blue/white wire (12v 300ma) must be connected to antenna booster or power amplifier. i have the same problem with extrarice before and i decided to do it myself connect this blue/white wire coming from my headunit to the blue wire which is going to antenna booster and hurah it works. my car is innova. i dont know other car harness color coding (you can google) .