Panasonic CQ-C7703N include:

* 70W x 4 High Power
* Digital Amp
* Sound Quality 7
* Crossover
* Mute/Attenuator
* Separate Bass, Treble, Balance, Fader
* Comes with Remote Control
* Radio DSP with FM Transmitter Mode
* 18FM, 6MW(LW) Station Presets
* CD-R/CD-RW Playback
* WMA/MP3 Playback
* ID3 Tag
* Motorized Display Face
* Variable Colour Display

This CD Tuner integrates a 16-character Pure Blue OEL Screen with a ‘rotary commander’, which works very much like a joystick - essential for navigating through your WMA, MP3 or iTunes audio files).

Features of the Pioneer DEH-P75BT:

* Bluetooth
* iTunes® AAC playback
* AUX-In
* Display illumination - OEL-PURE BLUE
* Sub-display output
* Cellular telephone auto muting
* iPod® adapter ready
* No. of Radio Presets - 24
* Max. output power (watts) - MOSFET 4 x 50 Watt
* Direct Sub Drive
* RCA Preout - 3 (F + R + S/W)
* Multi-CD Control
* ITS (Instant Track Selection)
* Disc Title Memory
* CD Text
* Source TV Control
* DAB Tuner Control
* AV Source Control
* Source DVD Control
* List Search Function
* External unit control via IP-Bus - 2
* AUX-In (with optional CD-RB20)
* Remote control - Included
* Hard-wired remote input
* ISO Connector ready
* Rotary volume
* Front Panel - Auto-flap mechanism (motorized)
* Removable Front Panel
* Flexible angle installation - 0-60°

Make calls and stream music via your Bluetooth CD Tuner - the DEH-P75BT supports both handsfree and audio profiles from your mobile phone.

Sony CDXF5550 includes:

* DRIVE-S
* Multi Codec (Mp3/Atrac3plus playback)
* ID3 Tag (Track-, Artist-, Album name) / CD Text
* CD-R/RW playback
* 2 pre-out
* BBE MP High Definition Sound
* S-MOSFET 4×50W output
* RDS-EON Tuner
* Blue background LCD Display
* 2 Pre-out
* Rear-Sub swichable pre-out
* DSO (Dynamic Soundstage Organizer)
* EQ3 (3 Band Equalizer)
* Detachable front panel
* IR card remote RM-X151 supplied
* Joystick RM-X4S (optional)

Detachable front panel with 1GB memory can be plugged into your home PC to allow USB music download capability for later playback in the car.

Sony MEX1GP features:

* 1GB Flash Memory integrated in Front Panel (A portion of the memory is used for data management functions. Actual available memory is approx. 967MB)
* USB connection for Music Download to Front Panel
* 4 x 52 W S-MOSFET power output
* DRIVE-S
* Flipdown Detachable Front Panel
* MP3/WMA/Atrac3 Playback
* BBE MP Digital - High Definition Sound
* 2 PRE-out (Front+Rear/Sub Switchable)
* EQ3 Stage II (3 Band Equalizer)
* 24-bit DAC (Digital / Analog Converter)
* WALKMAN / CD Changer Control Ready
* IR card remote RM-X151 supplied

Features of the Alpine CDE9846R include:

* Tuner:
* RDS
* FM Stereo Indicator
* Preset Stations (FM: 18/MW:6/LW:6)
* Auto Memory
* Local/DX Selection
* Up/Down Seek
* Station Title Memory

CD Player:
* Regulated 1-Bit DAC
* Zero data Mute (0 Bit Mute)
* Digital Servo
* Music Sensor Up/Dn
* Disc Play/Pause
* Forward/Backward
* Music Scan/Repeat
* Music Search Function
* 18 Disc Title Memory Display (CD Only)
* MP3 Decoder/Playback
* CD Text, CD Text Display, CD Text Scroll
* MP3 Text Information Display (ID3 Tag)
* M.I.X. One (Folder)/All (Random Play)
* CD-R/CD-RW Compatibility