I just bought a 2008 S2000 and i was looking at the radio and on the CD button it says AUX i was wondering where the auxiliary is? I've looked in the compartment next to the driver seat and the glove located on the top but still nothing.

Thx

 

It's not built in. You need to buy an adaptor that plugs in to the rear of the head unit.

 

Bottom line get a new radio/ headunit because the factory one is crap beyond words.