So I got my subs/amp installed tonight as i was about to test it before tightening everything up I realized I had forgot my stereo code at home. So put the car back together did the TBA with the key in position 1 for about 10min then started the quiet drive home to get my stereo code and of course in the quiet of the car I hear the engine running a little off almost like an old car running just not smooth not an overly loud noise either. Cant hear it when idling unless you open the hood and listen (coming from back passenger side to back middle) can hear it through 1st 2nd then the car gets too loud in 3rd to hear the noise any more. So my question is any ideas?. I was thinking of cleaning the TB and redo the alignment and maye take a look with the OBD II sensor. O and by the way the subs work pics to come later keep turning off the stereo to listen to the engine tho.