Jack Soulfire wrote:Yanks0114 wrote:However, you do lose quality when you go with a FM Modulator
SIGNIFICANT quality.
i.e. sounds like crap.

Yeah, if you still have your stock radio, you're better off getting a cassette adapter.
STOCK HU:
Simple as putting in tape, connecting other end to MP3 player, done.
AFTERMARKET HU (This is where it gets tricky):
If it has an RCA jack (the red and white ones you usually see on DVD/VCR/TV sets; yellow is for video and not used for sound, of course), go to RadioShack and get an RCA male to 3.5mm adapter. Here's 2 options:
RCA Male > 3.5mm
female: Also buy a 3.5mm male to male connector (eww

), and route the RCA end to your HU, then drill an inconspicuous hole somewhere and make it a jack (e.g. next to 2nd jack below ashtray), then plug the connector into the jack and then to the MP3 player.
Advantage:
Stealth when not in use, the connector wires are a lot thinner
Disadvantage:
You'd have to have the 3.5mm connector somewhere handy.
RCA Male > 3.5mm
male: connect the RCA end to your HU and the 3.5mm end directly to your MP3 player and route it through the back of the ash tray (or even inside the glove compartment).
Advantage: Won't need a connector
Disadvantage: the presence of thicker wires, wires may disappear into glove compartment if not secured to something or unable to close ash tray after installing through ash tray, and *EDIT* you won't be able to control your MP3 player if it's in the glovebox.
To play, tune your radio to AUX mode; some radios would need you enable AUX mode beforehand (true with Pioneer) and jam away. If I ever get an MP3 player, I'd do the same thing, so thank you for getting me thinking since I'm not a big fan of Apple, Inc.