using spotify offline with iPod touch through clarion double din.

[Jonnymason]

I'm trying to set up offline spotify on latest ipod touch to play through a Clarion double din head unit.

I've managed to get it to work but cannot search throught myplaylists on the head unit ?

On my old ipod touch using itunes this wasn't a problem.

I only bought the new ipod to use in my vehicle. 

Is there a solution ?