Looking to get better sound from your iPod or another player in your car without installing a bunch of new gear? JBL #39;s MS-2 car audio optimizer plugs into your vehicle #39;s power port, then connects between your player and your receiver #39;s auxiliary input. That #39;s it! You #39;ll get better bass, smoother midrange, and sparkling highs — all without changing your receiver or speakers. The MS-2 works for all systems, even those with aftermarket subs installed. Once connected, simply hold down the #34;setup #34; button for a few seconds, and the MS-2 does the rest. Its high-precision digital signal processor takes over, measuring frequency response and calculating the location of your speakers. Then the MS-2 applies timing adjustments and optimizes the audio signal, effectively raising your soundstage to ear level. The sound is now tailored to your vehicle, and you can use the MS-2 #39;s bass, treble, and impact controls to fine-tune your sound as needed. The MS-2 remembers the last settings you used, so you won #39;t have to set it up again until you switch vehicles — and the MS-2 #39;s simple installation makes it easy to take from car to car. Features: • plugs in between your portable player and your receiver #39;s auxiliary input • automatically analyzes and tailors the sound to your specific vehicle • raises soundstage to ear level • works with or without aftermarket subs • records the last settings used to built-in flash memory • no installation necessary — plugs into your vehicle #39;s power port