Re: Sound quality from an Ipod?
With a stock stereo system, you really shouldn't notice that big of a difference. I think you may have a connection problem. All Ipods have internal D/A converters used to make the sounds from the unit, to sound the best in a set of headphones. You can bypass this with a properly equipped head unit that has a USB that plugs directly into the dock at the bottom of the Ipod, not the headphone jack. Even then you will not notice much of a difference of you are not utilizing an uncompressed form of music (not MP3's). You have a lot to change if you are really interested in the quality of sound in your vehicle. it doesn't have to cost a million bucks, but it will require you to learn a lot of information.
With the lack of your stock sytem's ability to play an extended range of output efficiently, you will not hear enough detail to make an impression on Sound Quality. This is why I believe you have a connection problem, or really bad downloads at a very low bit rate. This will cut the amount of information downloaded to a minimum, but allow you to download faster.
I hope this helps!! I know others here have a lot ot help you with too
Boston Accoustics Front & Rear
Cadence United Series Vegas 4 Channel
Cadence United Series Dakota Mono Amp
Duralast 1,000 amp battery, X-Static 2,000 Amp Battery
Rockford Foagate 1/0 wire, and interconnects
Cadence shielded RCA wire
Dynamat sound deadening, Fatmat sound deadening