Why won't my speakers play my iphone 5 music?

So I brought a docking system for my iphone 4 last year which played music through and charged my iphone 4 fine but then I upgraded to a iphone 5 and I brought one of these: http://www.mobilefun.co.uk/genuine-apple-lightning-to-30-pin-converter-p36240.htm to put onto the docking system so that I could play music through my iphone 5 but it won't play my music but it will charge it. It comes up as "this cable or accessory is not certified and may not work reliably with this iPhone" but I don't see why, is there anything I can do?

As the iphone 4 and IPHONE 5 CABLE are different. Iphone 4 cable will not support to iphone 5. You can gain docking system from this site.

  • Why won't songs play good on my iPhone 5 but play normal on iTunes? When I download music and import it to iTunes, They play fine and normal but as soon as i put them on my iPhone they sound scratchy or like if they were getting fast forwarded. I don't think it's my iPhone because I've put songs in it before but this just started happening today. What's the problem, How do i fix this?
  • Speakers sound blown out when I play my music on the Aux cord? So starting today I put my Aux cord into my iPhone 6 to connect to my Pontiac Torrent to play music, and the audio was absolute garbage! It sounded like my speakers were blown out, which scared me. But I went to my radio to see if it did the same and it was fine! I thought it was just the aux cord breaking, but I bought a new one after work and it didn't help at all. What is wrong with my auxiliary port?
  • My iPhone won't play through speakers? When I tried calling my phone it was on vibrate, it's not on airplane mode and I cleaned my speakers and reset my settings, nothing helps, does anyone know what extra steps I can take? The volume is all the way up and the sliding thing on the side of the phone is off vibrate It works in my Bose system and my ear phones too
  • My iPhone 4 won't play audio out of the speakers? I tried to play music and it just won't play, please help. There isn't a bar to turn up the music and the + and - buttons don't work.