Hurricain

I just got my new stereo installed and now have a cable ran from the back going though the dash to plug in my MP3 player. What I would like to do is install a mini jack like they have in newer cars. The only I have found is a female jack at radio shack that I have to solder on to. Which is no big deal, just thought maybe there might be a 1/8" jack with a cable male end that I can mount in the dash.