Receivers come in 3 sizes. Single Din, 1.5 Din, or Double Din. Single din receivers are 2" tall, while 1.5 din receivers are 3" in height, and double din receivers are 4" tall. Single Din is a universal size that can fit any vehicle.
An SD Card reader will allow you to store your audio tracks on a memory card, and play it through your receiver. The receiver will display artist and song information on the display.
Bluetooth allows you to talk on your phone hands free while you drive. Some receivers have bluetooth built in with no accessories required, while other receivers are "bluetooth ready" which means you will need to purchase a bluetooth interface adapter.
With HD Radio, there are no monthly fees, but you get free radio sub-channels which you normally would not get! The reception is also crystal clear in high definition, and best of all the receiver will display the station name, song name, and more!
So
A rearview camera input allows you to add a back-up camera to your system so you can see behind your vehicle when you are going in reverse or parking, etc.
The amount of pre-amp output channels will determine how many amplifiers you can connect to your receiver. The top receivers have 3 sets of pre-amp outputs (front, rear, and sub pre-amps). If you plan to connect 1 or 0 external amplifiers to your receiv
The RMS output power of a receiver is more important than the peak output power. The RMS power represents the amount of power the built in amplifier in the receiver can consistantly put out throughout the entire song. The RMS output power will represent
Touch screen gives you the ability to control and operate functions of the receiver through touching the monitor. Touch screen gives you an easy to use interface to quickly navigate functions thorugh interactive menus.
The peak output power of a receiver is the amount of power the built in amplifier in the receiver can put out during a musical burst throughout a song. Amps tend to use their peak output power for 1-3 seconds at a time, and then go back to using the RMS
Some monitors can haave GPS navigation built in which will give you turn by turn directions to any destination. Other monitors may be "navigation ready" which means you can add on an optional navigation box.
If a receiver has iPod controls it will be able to integrate your iPod with the receiver. You will be able to connect your iPod or iPhone to the receiver and you can control your playlist from the receiver. The iPod will get charged while it is connecte
An aux input will allow you to add portable audio devices and listen to them through your car speakers. Most aux inputs use a 3.5 MM headphone plug. Some receivers also have RCA aux inputs.
Size of the screen
MP3 Playback will allow you to store hundreds of MP3 tracks on an ordinary CD-r or CD-RW disc and play it back with any CD Player that supports MP3 Playback.
A remote control will allow you to control your receiver from the palm of your hand.
A Detachable Face allows you to take off the faceplate when you leave your vehicle. This is an anti-theft feature which is supposed to stop a thief from stealing the receiver from your vehicle. If the face is detached the receiver is not visible. The r
This feature determined if your receiver is compatible with Sirius or XM satellite Radio. To get satellite radio you will still need to purchase a tuner, and antenna, and subscription service.
A USB input allows easy access for you to hook up any portable, MP3 player, or other portable USB audio device including a USB thumb drive.
Audio/Video outputs give you the ability to expand your system and add other monitors. If the receiver is dual zone, you can watch one source on the rear monitors while listening to the radio or other source in the front. By default the rear monitors wi