So I took some birthday money and got myself a nice set of Audio-Technica cans. Problem is, if I want to use them with my phone, the base of the auxiliary plug is too fat to fit securely through my phone's case. I know they make cables that are specially made with slim plugs to get around this issue, but does anyone make adapters to accomplish the same thing?

I'd prefer something like [VIDEO]]this[/VIDEO] that I can just stick on the end, but even if it's just a really short or retractable male to female auxiliary cable adapter, I'd be fine with that. I'm not having any luck finding one though.

Basically I need to turn a standard "fat" auxiliary cable into one of [VIDEO] =1-2&keywords=smartphone+case+auxiliary+cable]these[/VIDEO] Any suggestions?