[kalasas29]

Hello.I've recently bought bmw e91 2009 and encountered strange thing with aux.When i plug it I get no audio except quiet buzzing unless I plug aux to my phone slowly untill I start hearing music and then I can push it to the end so the bass can appear.Tried different aux cables and with them it works instantly although there's no bass then.Does anyone know what could be the root of the problem?