It's about one that can be squeezed under the aux. What do you think about these, someone used? Maybe other suggestions. Thanks in advance for your help
http://www.oleole.pl/transmisja-audio-wideo-wi-fi/tp-link-ha100.bhtml?from=ceneo&p=84.00&cr=0
http://www.oleole.pl/transmisja-audio-wideo-w...-audio-adapter.bhtml?from=ceneo&p=133.00&cr=0
http://www.eukasa.pl/adapter-philips-aea2000-aea2000/

http://www.oleole.pl/transmisja-audio-wideo-wi-fi/tp-link-ha100.bhtml?from=ceneo&p=84.00&cr=0
http://www.oleole.pl/transmisja-audio-wideo-w...-audio-adapter.bhtml?from=ceneo&p=133.00&cr=0
http://www.eukasa.pl/adapter-philips-aea2000-aea2000/