Voltage converter - Negative earth radio in Positive earth car. The MGA With An Attitude. VOLTAGE CONVERTER - ET- 2. Installing a NEGATIVE EARTH RADIOin a POSITIVE EARTH CAR (or vice versa)This is one of those Gee Whiz tricks that can impress people if you get it right (which is actually pretty easy), or can burn your car down to the ground if you get it wrong (which is also pretty easy). I should say right up front that it is generally easier to convert the car's electrical system to negative earth, which would allow you to then install any number of electronic gadgets. The only people who should even think about installing a negative earth device in a positive earth vehicle should be devout members of the Positive Earth Society who insist on keeping the car's electrical system wired as positive earth for concours reasons, while installing some negative earth electronic device(s), which wouldn't be concours anyway.
Hate paying a dealer or auto shop big bucks for something you can do yourself? You can install a satellite radio in your car by yourself by following these instructions.
Anyone else should just convert the car to negative earth. Still, I have bumped into a few people who insist on doing this, so here goes.
Let me first describe the WRONG way to do it, which many people brashly assume is the only way. You could build an electrically insulated isolation cabinet around your new negative earth radio, and mount it in the dash while being careful to keep it electrically insulated from the dash panel. Then just swap the power input wires, connecting the vehicle hot wire to the radio chassis ground, and connecting the vehicle ground wire to the power terminal on the radio. This could work (maybe), but it also raises some other possible shorting and grounding problems.
![Is Installing A Car Radio Hard Is Installing A Car Radio Hard](http://www.etrailer.com/Merchant2/graphics/00000001/pics/f/a/faq090_aa_500.jpg)
- This is a guide to installing an aftermarket radio and 4 speakers for the TJ. Install was done on my 2003. I am wanting to contribute more to this forum and after updating my sound system decided to make a write up on installing an aftermarket radio and 4 speakers.
- The Modified Life staff has taken all its Ford car radio wiring diagrams, Ford car audio wiring diagrams, Ford car stereo wiring diagrams, Ford car radio wiring schematics, Ford car wiring diagrams and cataloged them online for use by our visitors for free.
- How to Remove Car Radio Static. Automobile radios operate in a hostile electromagnetic environment. They're constantly bombarded by a multitude of magnetic pulses from the car's ignition and charging systems, accessory motors, relays and solenoids, and other electric components. AM signals are especially vulnerable to radio frequency interference.
![Is Installing A Car Radio Hard Is Installing A Car Radio Hard](http://www.southhaventribune.net/yahoo_site_admin/assets/images/MLK_kids_WEB.2580657_std.jpg)
If there might be any exposed metal part(s) on the front of the radio, just touching your car keys or a ring on your finger between that metal point and any other electrically conductive grounding point on the car could cause a power short. If you're lucky (and well wired) it might blow a fuse. Not so lucky, it might burn your fingers, destroy some radio circuits, burn up some wiring, or worse. And it is hard to be sure that there is nothing conductive on the front of the radio. There could be something as seemingly innocuous as a steel set screw holding a dial knob on the shaft, or a steel nut trying to hide behind the dial knob and holding the radio in the faceplate. Drop a key or a coin in there, and you might be swearing quicker than you think. Another possible problem could be if the antenna is electrically grounded on the body of the car.
![Is Installing A Car Radio Hard Is Installing A Car Radio Hard](http://www.titantalk.com/forums/attachments/titan-general-discussion/6652d1105228311-good-info-anyone-installing-nissan-satellite-radio-05-titan-disp2.jpg)
The antenna signal lead is commonly a coaxial cable with the outer braided jacket used as a grounded electrical shield to protect the central signal wire from extraneous electrical interference, like ignition spark noise. That outer jacket is commonly connected to the chassis of the radio.
If it also happens to be connected to the antenna body mounting bracket at the other end, you're stuffed. Then you start thinking about how to electrically isolate the antenna mount from the car body. And then you may want to think about what happens if you accidentally short the antenna mast to the chassis of the car. Enough of that stuff.
How to remove your car stereo. Well it is not that hard if you have right tools. There are many radios which you can remove by just a metal wire, but if you have mine type, you can just use two thin steel knifes, and if with them it is not enough you will have to use pliers as well. In video you can see Sony Xplod cdx R3350 radio, it is my Honda Accord cc7 1993 V If you have any questions about wiring or what ever just let me know and I ll try to help u out! Intro: Installing Subwoofers in a Car. In this instructable, I will show you the whole process of installing an amplified subwoofer into a car. After you have your subwoofer system set up, you will.
Let's get on with the RIGHT way to do it. The right way is to install the radio in a more normal fashion with the cabinet nicely grounded on the dash (if you like) and/or grounded to the chassis of the car.
Then also install a voltage converter device (which is commonly referred to as a voltage inverter). This device appears to electrically use the battery - 1. The hookup schematic is commonly drawn something like this: The little trick here is to keep the ground potential of the radio chassis at the same voltage level as the ground potential of the car chassis. We commonly think of this as zero volts at body ground. So you will never get a spark or a blown fuse or an electrical shock or any wiring fire by shorting the radio housing to the car body. In fact the radio housing (and the antenna) might be always shorted to the car body, and it works nicely.
But there is another way to look at this electrical schematic. It's all relative. When measuring voltages with a volt meter, you can use any point in the electrical system as the zero volt reference point, and you can measure the voltage relative to that at any other point in the electrical system. For the sake of this new view, let's use the negative post of the battery as the zero volt reference, and measure everything else relative to that, which will make all of the readings 1. Poking around the same circuit with a volt meter would give you these voltage readings: This gives an entirely different impression of what the voltage converter is doing. It is in fact taking the 1. The radio then sees a +2.
This is part one of three on how to install an auxiliary headphone jack into your vehicle using the OEM stereo. This concept can be applied to most stereos as long as you know what wires are connected to the back of your main unit. Part two contains interior hookup http:// Part three contains results, afterthoughts http:// What you need (should cost less than $20 for everything): Philips Screwdriver Ratchet set. Car radio repair can be very easy or very hard depending on the radio and the problem. Before you invest a lot of money in a repair, take a look at this list to see if you can fix the problem yourself. Ken Harrison has the solution for your need for speakers that are dual voice coil and dual speakers that fit original openings. They have one for almost every Classic car out there.
![Is Installing A Car Radio Hard Is Installing A Car Radio Hard](http://thumbs4.ebaystatic.com/d/l225/m/mRaUF2DBwQNyOG4mRCXVEEg.jpg)
So the power converter box is in fact a voltage doubler, which only looks like a polarity changer. If you physically attach the voltage converter to the radio, or logically treat it as part of the radio, then your negative earth radio magically becomes a positive earth radio for use in your positive earth car. Cute, huh? The nice part is that as long as you don't need too much power for the radio, the voltage converter could be really cheap and small (and easy to hide). I have seen a small converter (maybe 1. Bay occasionally for as little as $1. The full retail price of a new 5. I just Googled up a 6.
MSRP of $8. 5 (picture at right). The body size is about 1"x. This is a Power Stream model ED1.
I hope the link stays good for a while). It is 8. 8% efficient, so at the maximum 6.
Addendum May 2. 00. At 0. 6: 1. 4 PM 5/4/0. Brent Kasl wrote: "I have an original Alpine with positive ground. The only reason I have not switched to negative ground and add the alternator is to keep my original positive ground radio in the car.
It does not have a switch on the back from pos- neg. Is their a way to change the radio to neg w/o damage???"Probably not. However, if you want Negative ground, and you want to keep your positive ground radio, you can use a voltage converter. Most people do this to run a negative earth radio in a positive earth car, but it works just as well the other way around. Just swap all the + and - signs on the diagram, and you have it. Addendum September 2. Here's a slightly smaller "Positive- to- Negative Ground High- current Converter" for $7.
Antique Automobile, 7. Tampa Rd., Palm Harbor, FL. It is a 1- 3/4 inch cube. It wants a 6 amp fuse, so I suppose it's good for 5. Addendum February 2.
On 2/2. 1/2. 01. 3 - 0. John Moglia in Phoenix, Arizona, USA wrote: "I installed an Archer (Radio Shack) inverter which converts either 6 or 1. It is part number 2.
A. Unfortunately the device has been out of production for years but used ones do surface from time to time". Parked beside a business card, this inverter appears to be about 3- 1/2 x 5- 1/4". Old technology is not particularly small.