I have a 2005 v6 stang with the stock stereo (not a shaker 500 or 1000). I just installed an amp and sub (alpine 10" r series sub and alpine vpower 400 watt amp). I seem to get little to no bass output from the sub when using my itrip auto which u just set to a station then tune the radio to that to play ur ipod through it. On regular readio stations depending on the song i get varied bass output, seems very good on some stations and with cds the bass output is nice loud and clear. I'm guessing by using the itrip fm transmitter im loosing almost all the low frequency bass output, so i was wondering if there is a way to hardwire an ipod to my stock head unit, there is a button marked AUX so theres gotta be some wires to tap into in the wire harness that plugs into the back of the stereo. All I want is to get the best quality sound from the songs on my ipod so they sound good and make full use of the sub. The system really bumps with cds, its like night and day between the ipod using the itrip and cds. it wasnt a big difference with the stock sound system, the speakers had decent bass with both cds and the ipod.