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CHIMEI INNOLUX Display screen LCD Monitor for BM 9289008 BM 9284974 L6 CID MU 10.25 inch BMW 5 Series F10 F11 F18 NBT Navigation GPS Bluetooth WiFi 520Li 525Li 520I car DVD player not including PC Board

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Car Audio System Planning

What is system planning? It's the process that keeps you from making costly mistakes and ending up with equipment you don't want or can't use. Here's system planning for most car audio shoppers.

"My friend just got two fifteens for his car and it booms! I just got the same ones he bought but I bought the new gigawatt amplifier I saw in the magazines. I also bought a new head unit but I want to keep my factory speakers because I don't want to spend too much money."

Everything sounds OK until you realize that he drives a Mazda Miata and barely has enough trunk space for a bag of groceries let alone the six cubic feet those two fifteens require. Oh, and he also has a premium sound system that requires an $80 adapter to interface with the factory amplified speakers. Too bad he already opened the boxes and now they're not returnable.

So what could have prevented this? Planning. You need to know four things.

1. What you want
   
2. What you have
   
3. What you're willing to give up to get what you want
   
4. What you're not willing to give up

Here's how it should be done.

1. I want a stereo system that sounds clean and can be heard for three blocks.
   
2. A Honda Prelude with a factory sound system
   
3. Money
   
4. Trunk space for my golf clubs

Now that you know what you want you can figure out how to get it and stay within the set parameters. Here's how to go about it.

1. Get the best set of component speakers you can afford and drive them with 75-150 watts of clean amplifier power. Install a high powered subwoofer system.
   
2. Remove the factory sound system and replace it with the CD head unit of your choice making sure it has at least two sets of pre-amp outputs to allow fading between the front speakers and the subwoofers.
   
3. Expect to pay $350+ for the component set. $200+ for the head unit. An amplifier for the component set will run $200 and up. Small box subwoofers will be $500+ per pair. Add another $100 for a custom enclosure. A high powered amp for the subs will be about $400+ with a built in crossover and one ohm stability. And don't forget $100 for wiring. Expect an installed cost of $2,000+.
   
4. You'll need to get a subwoofer system that can fit in an enclosure small enough to allow room for your golf clubs. I'd recommend subwoofers built for small enclosures. You could get a pair of twelve inch woofers that would only require 1.5-2.0 cubic feet of space total. Maybe even a fiberglass enclosure that could be form fit to the car to really maximize available space. You'll want a large amplifier to run these woofers at high volume levels. I'd also recommend installing some sound deadening material to your car to keep the vehicle from sounding like a tin can when the system is turned up.

Make sure you take into account any vehicle limitations. This includes shallow space in the doors, bottom mount only rear deck speakers, shallow depth head unit, etc. Almost any car audio problem can be solved if you have enough money. Not enough space for large subwoofers? Add more power to smaller subwoofers. No room for a double DIN head unit in your dash? Have the dash reconstructed. If you don't have a lot of money then you need to make better buying decisions. Maybe only one subwoofer instead of two. Maybe a four channel amplifier instead of two stereo amplifiers. A head unit without the dancing lights. One note of caution when budget shopping. Don't skimp on the speakers, especially the front speakers. If there's one thing that should be the best you can afford it's the front speakers. In my experience there is nothing else that can make or break a system like the quality of the front speaker set. The best head unit and amplifiers won't make a difference if you don't have a great front stage. Make sure quality front speakers are a part of your system plan.

Sharp display  LQ070T5GC01 LQ070T5GA01 LCD Monitor with tocuh screen Digitizer for Toyota 2010-2014 Sequoia SR5 Venza 08-09 Tundra JBL Sienna car 4CD Changer DENSO Navigation audio radio MAP Media MP3 Bluetooth BE7013

Sharp Display LQ070T5GC01 LQ070T5GA01 LCD Monitor with tocuh screen Digitizer for Toyota 2010-2014 Sequoia SR5 Venza 08-09 Tundra JBL Sienna car 4CD Changer DENSO Navigation audio radio MAP Media MP3 Bluetooth BE7013 - See more at: http://opuradio.com/products-detail.php?ProId=1313#sthash.ZdxinGmg.dpuf

Problem: Alternator Wine

Possible Solution:

–          If you hear a wining noise that fluctuates with the RPMs of your vehicle, and lessens when the car engine is turned off, you are dealing with Alternator Wine. Alternator Wine is cause by having a bad ground to either your head unit or your speakers’ amplifier. Check your ground wires and find a better place to ground them, e.g. the frame or body of the car.
–          If you are experiencing headlight dimming when you have your radio turned up with aftermarket amplifiers and subwoofers, your stereo is pulling too much power for the alternator to keep up. There are a few solutions to this problem:

• Wire in a Capacitor. Although curing headlight dim is far down on the list for a Capacitor’s use, a capacitor might be the solution to your problem. A capacitor is made to curve the spikes in power from the battery to the Amplifier, to create consistent 12v power. Adding a capacitor with the correct farad, in some cases, will curve your amplifier power drawing spikes enough to limit headlight dim. The rule of thumb farad – wattage conversion is 1 farad to every 1000 watts.
• Upgrade the Alternator. Sometimes OEM alternators don’t generate enough power for your upgraded stereo. Upgrading the alternator to one that can produce enough power to handle your upgraded amplifiers/stereo will solve your headlight dim.
• Get a Bigger/Better Battery: Sometimes old/cheap batteries can be one of the sources in your headlight dim issue. Replace your battery to a newer, bigger batter to handle more power and load. Although this might not fix the problem it might help.
• Add an Auxiliary Battery: Wire in a completely separate battery to power just your stereo. This will lessen the load on your engine battery and sometimes will fix your headlight dim.
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