So i recently bought a 05 scion tc, and it had a pioneer radio from a 2012 tc installed but the aux wasnt installed, the 2005 scion tc doesnt bring aux of course, and the radio is capable of aux i just need to know which input is in charge of it and what cable i should use. Please id like to know what type of input this is, and if it is the one in charge of aux.

 

Isn't there an AUX port in the armrest? I thought there was on mine (although I changed my factory radio out over a decade ago.)

 

Scion T1807 install in 3rd gen '99 Limited (pic heavy) - Toyota 4Runner Forum - Largest 4Runner Forum
here!