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Hacking together a stereo for garage .. help.
In article
e.rogers.com, mbeaton wrote: I've never known much about car audio, other than how to pay for it and how to use it. I've never done anything sophisticated for myself in this area. I was hoping somebody could help me out here, and tell me what I need to get this working. I know I need to reduce the voltage to 12V, which you can buy converters for correct? Somebody told me they were about $70CA, which seems a little high, but anyways. Looks lke I also need a few other things as well. I've attached a picture of the back of the unit, and I've circled the inputs/outputs ... could somebody explain what these are? If this is not the right forum for this type of question, please feel free to put me in my place too! Any help is greatly appreciated. thanks! You will need to know the power draw of the stereo unit. Radio Shack has a 12 volt supply at 2.5 amps. That will be enough to run the unit, but might now allow it to get too loud. A car battery with a battery charger might work better, or a larger bench test power supply would be best. These are going to run some money. The round connector is for the antenna. You can get that at Radio Shack. The two 3-pin connectors are for power and speakers. Which is which and what the pin-out is will be your task to find out. You might be able to get this from the net, or by going to the dealer. Basically, you are going to have a power plug with a ground, a 12V hot all the time (for the clock), and a 12 volt switched (for the radio). In your case, if you don't need the clock, just tie the two hot wires together. The speakers likely are going to have two (+) outputs, one for right, one for left, and one (-) output. You hook the (+) wires one to each speaker, and the (-) from each speaker is tied together to the radio (-). Be very careful here that this is indeed the way it works. If there are two (-) speaker wires, then you have computer chip audio amps, and they will blow quickly if they are not connected exactly the way they would be in your car. -john- -- ================================================== ================== John A. Weeks III 952-432-2708 Newave Communications http://www.johnweeks.com ================================================== ================== |
#2
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John, thanks for your detailed information. Due to my ignorance re. this
stuff, I was hoping it was a little simpler. But from what I read, it seems a little too involved. For the amount of money I would spend on misc. items I could probably get an old house amp from ebay to power my speakers and avoid the headache. Therefore, FOR SALE: 1 Car Stereo deck, $25! See previous post for pics. "John A. Weeks III" wrote in message ... In article e.rogers.com, mbeaton wrote: I've never known much about car audio, other than how to pay for it and how to use it. I've never done anything sophisticated for myself in this area. I was hoping somebody could help me out here, and tell me what I need to get this working. I know I need to reduce the voltage to 12V, which you can buy converters for correct? Somebody told me they were about $70CA, which seems a little high, but anyways. Looks lke I also need a few other things as well. I've attached a picture of the back of the unit, and I've circled the inputs/outputs ... could somebody explain what these are? If this is not the right forum for this type of question, please feel free to put me in my place too! Any help is greatly appreciated. thanks! You will need to know the power draw of the stereo unit. Radio Shack has a 12 volt supply at 2.5 amps. That will be enough to run the unit, but might now allow it to get too loud. A car battery with a battery charger might work better, or a larger bench test power supply would be best. These are going to run some money. The round connector is for the antenna. You can get that at Radio Shack. The two 3-pin connectors are for power and speakers. Which is which and what the pin-out is will be your task to find out. You might be able to get this from the net, or by going to the dealer. Basically, you are going to have a power plug with a ground, a 12V hot all the time (for the clock), and a 12 volt switched (for the radio). In your case, if you don't need the clock, just tie the two hot wires together. The speakers likely are going to have two (+) outputs, one for right, one for left, and one (-) output. You hook the (+) wires one to each speaker, and the (-) from each speaker is tied together to the radio (-). Be very careful here that this is indeed the way it works. If there are two (-) speaker wires, then you have computer chip audio amps, and they will blow quickly if they are not connected exactly the way they would be in your car. -john- -- ================================================== ================== John A. Weeks III 952-432-2708 Newave Communications http://www.johnweeks.com ================================================== ================== |
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