iPod mini 1st gen and Yatour car mp3 player

[fr0sty]

I recently bought a Yatour car mp3 player, so i can use my ipod on my radio. I set everything up and connected my iPod with rockbox on it, started a mp3 but i dont get any sound. If i hook up an iPhone then i get sound. Updated to the last rockbox version, messed around with the settings but no luck.