Help : AUX input in the factory HU

[Hossam]

Hello,

Here in Egypt Toyota Yaris is available without AUX input , and as I have Iphone I wanna connect it to the HU .



I have tried FM Modulator but I got poor sound quality so I decide to connect through AUX input , I plug "RCA To AUX" Radioshack cable but when I click in the Source Tab I got only TAPE & Radio .

I just hear what I playing in the iphone in the rear speaker while I exploring FM signals with poor quality

Anyone can advice me How to play Iphone in my Yaris








thanks