Wednesday, November 30, 2011

Car Stereo Wiring 101 - A Must Read!

!±8± Car Stereo Wiring 101 - A Must Read!

I have come across a lot of car stereo systems over the past 10 years or so. There are so many "techniques" to installing head units. Everyone has their own opinion of what is right and wrong when wiring up a system, but just because it works doesn't make it right.

I asked Majestic Modifications what their opinion was on the subject. How do they install so many units and always get it right?

First, if applicable, always use the harnesses. The aftermarket wiring harness will usually take the guesswork out of the installation. These harnesses attach to the vehicle's factory wiring harness and gives you a color coded installation. You just attach red to red, yellow to yellow, etc. But is that all an installer should know?

Starting with your digital multimeter, find the power sources in the harness. One source will be continuous 12 volts, the other will be the ACC (ignition) 12 volts. These two will go with the yellow and red wires from the aftermarket head unit's harness. They are labeled accordingly. It is usually a good idea to attach the ground wire to the frame of the dash. A lot of head units come with a connector for this already attached to the ground wire. Secure these in place with some solder and shrink tubing. Slip the shrink tubing over one of the wires to be connected and move it out of the way. Connect the wires and dab a little solder on the wires. Let cool and then slide the heat shrink tubing over the connection. Heat with a heat gun/hair dryer to shrink the tubing to fit.

You can try to look on the internet for the wiring colors, but good luck. They will tell you the "typical" wire colors, but chances are it will be different. You can try two techniques to find the right wires. Clip the rest of the wires from the factory harness. You can test the speakers with a good 9 volt battery to see which speakers are which. Two wires connected to the same speaker will make it pop. Note which speaker makes the pop and attach it to that speakers wiring from the head unit. I like to turn the unit on and make sure the wires are the right polarity. A reverse wired speaker will not have as good a sound as a properly wired one. Continue the technique until all the speakers are connected.

The other way you can trace the speakers down is to turn on the head unit, but be VERY careful to not cross any wires. Start with a pair of wires, and attach them one at a time until you get sound. Note which speaker it is and attach it to that speaker's wires from the wiring harness, taking not of polarity. Continue until all the wires are in place. Zip tie the wire together and neatly tuck them behind the head unit.

Be sure you have a good ground wire connection. Be sure that RCAs or signal wires are running away from any power wires or sources, and are not run parallel to them.

If you want a neat trick, you can attach the 12 volt acc to the illumination wire, and you will be able to turn the unit on with your parking light switch. Take note, that anytime the unit is on, the dash panel lights will be on too, but you won't notice them in the daytime. The illumination wire is used to turn the factory radio lights on at night.

Not having the wiring harness for your vehicle is not a do or die situation. If you can get the harnesses, save the hassle and time and use it. If you find yourself in a bind, then follow the steps above and get it installed correctly.


Car Stereo Wiring 101 - A Must Read!

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Monday, November 21, 2011

Music Mediums - A Brief History

!±8± Music Mediums - A Brief History

Consumer music mediums have come a long way since Thomas Edison recited "Mary Had a Little Lamb" onto one of the first audio recordings ever. Since then, the method of what we use to listen to music has sometimes made extremely small, slow progressions, and other times it moves almost too fast to keep up with.

A grammaphone, or vinyl record, was the music medium of choice from the early 1900's up through the mid 1960's. When your favorite artist released their new album, you'd head on down to the record store and pick it up, take it home, and play it on your own record player. Even after other mediums became the most popular medium, records never fully went away, and are still frequently sold to audiophiles and music collectors. Some of the other technology you're about to read about was popular for a little while, then faded away completely when a new medium surpassed it in popularity.

Beginning in the late 60s, some music was released on a cartridge called Stereo 8, or an 8-track tape. 8-Tracks became very popular because consumers could listen to their favorite music in their cars. The 8-track was even developed in collaboration with the Ford Motor Company. The more compact and easier to transport 8-track was a consumer favorite. The 8-track remained popular until the late 70s, when cassette tapes became the medium of choice for the music buying public.

Cassettes started to gain popular in the early-mid 1970s, and were at their peak popularity during the 1980s. A cassette had the advantage of not only being a great way to listen to your favorite band's new music release, but eventually you could buy blank tapes, and copy and share music the music you either recorded off the radio, or got from a friend (using a dual cassette boom box). Cassettes were like a musical precursor to social media, because you could record a song off the radio, and then record another song you liked later, and so on, until the tape was full. Then you could share new music with your friends by trading tapes.

CDs, or compact discs, followed cassettes, and held on to be the most popular form of listening to new music releases during the 1990s through the beginning of the 2000s. Compact discs offered by audio quality and longer play time (80 minutes vs. 60 minutes) than the average cassette. Audio equipment continued to improve, and soon cars were coming standard with CD players instead of cassette players.

Of course, following the success of compact discs and CD players is the mp3 and mp3 player. CDs are still around, and are still the second most popular format of listening to music, but with the introduction of mp3 players, the popularity of the iPod (which debuted in 2001),and the iTunes and Amazon digital music store, CDs will probably remain a second place technology.

The latest development in the music medium is the cloud movement. "The Cloud," in the context of the internet, is an offsite storage that houses data. For instance, if you saved something to the cloud, it would not reside on your machine, but on a server in a large warehouse in another state. The big three tech heavy-hitters Google, Amazon, and Apple all have a cloud based music option. The future of music could look very much like having a device that is constantly connected to the web (and thus, to the cloud), and you, the user, can stream music from a large library of music. This technology exists now, but most people still sync their mp3 player with a computer. Cloud music technology is in its infancy as far as how it relates to consumers, as cloud streaming music debuted from Amazon, Google and Apple in 2011.

Where is music headed next? Wireless headphones that connect to the cloud and stream music based solely voice commands? The possibilities are truly endless. Who, in the days of the vinyl record, could have predicted compact disc, or even cloud based music technology? It will be interesting to see where we will end up next as technology continues to mature and make leaps forward much quicker than it ever has before.


Music Mediums - A Brief History

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Tuesday, November 15, 2011

MP3 Players - Hear the Difference

!±8± MP3 Players - Hear the Difference

MP3 players are portable media players to listen to your favourite music, store video files and images. Without question the most famous one is the Apple iPod but other brands are catching up quickly with the technology and features.

The development started with portable cassette players followed by CD players and finally Mini Disc players. However, the devices were not able to store music in digital files and relied on external storage drives. As they were much bigger than today's MP3 players and had a limited functionality their use wasn't as handy and the audio quality often suffered from movements. Consequently, portable audio devices were not best for outside activities, running and exercising in those days.

This all changed in 2001 when Apple released the first iPod with 5GB storage for more than 1000 songs in the new mp3 format. Supported by iTunes and thanks to the small size and huge storage capacity, the iPod is still the most popular MP3 player on the market. According to recent surveys it is not only the best selling MP3 player but also has almost no substitute product.

Today, the Apple product range comprises the iPod classic, iPod nano, iPod shuffle and the latest iPod touch as well as the iPhone. These small portable MP3 players can play audio files like mp3 and others but also display images and play videos. Recent models also support the new MPEG-4 format.

In a nutshell, the Apple iPod provides an all-around solution for portable audio. The Apple software iTunes can be regarded as the most popular programme for organising and storing music and other audio and video files. Whereas it was previously only available for Apple computers like the Mac, it can now be downloaded by everyone. It offers the user the benefit of automatically updating the iPod as soon as it is connected to the computer. This makes it easier to organise the music library and saves a lot of time, too.

Even though other manufacturers like Sony and Samsung try to gain some market share, the iPod is still the outstanding market leader due to Apple's innovation focus this is unlikely to change in the near future.


MP3 Players - Hear the Difference

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