how to replace a car battery without losing stereo code? help plz?

Question

i need to change my hyundai accent car battery and have a securety attached to stereo????

Answer 1

Here's a link to a product that should work for you:

http://www.amazon.com/CTA-Tools-Computer-Memory-Saver/dp/B000GKD5Q0

As others have said, you should be able to find something like this at any local auto parts store.

Answer 2

it depends on the make of the stereo to begin with, I would check with Hyundai to make sure that a temporary power loss will not affect it. (usually a few seconds during changeover). I had the same problem with my blaupunkt this afternoon as I had to change my battery. The stereo will store all other information, but will need a code to activate.

As far as the Hyundai stereo goes it might not need a code, if it does and it is factory fitted, then you will have to call Hyundai and give them the VIN or whatever they need to locate the right code. Alternatively, there might be a way of jury rigging it with just some temporary wiring, attach just some thin wires to the terminals of the new battery and tie them to the terminal cables of the car so that when the old battery is removed, voltage is at least not interrupted until you can lock the terminal clamps down again and take the temp wires off. This will maintain a constant current and fool the stereo into thinking that it is the same battery and that it wasn't taken out or stolen or anything.

The reason that radios code like that is to prevent theft, they rely on constant current to maintain their memory and to keep the code active. If the current (power) is cut, the radio code is inactive and the radio thinks that it was removed from the car (possibly stolen). That is why.

Answer 3

Your local auto parts store should have a "computer memory saver". This is just a device that plugs into the cigarette lighter, and takes a 9v battery. When the car battery is disconnected, the 9v battery keeps a small amount of power going to the vehicle computer systems and radio. You'll want to make sure you don't have any doors open while changing the battery, and if there's a light under the hood, it should be disabled--the memory saver can't handle the current requirements of a dome light or under-hood light.

Answer 4

An adapter that uses a 9 volt battery that plugs into the cigarette lighter socket allows the memory to be saved.

Look to your local auto parts store.

Answer 5

You'll need two jumper wires (12 ga) with clips. set the new batt on top of the engine and clip the jumpers (not jumper cables) pos to pos and neg to neg. Now, being careful not to knock off your jumper clips, remove the old bat, put the new one in place and carefully hook up the cables. As long as you don't break the connection you'll be okay.

Answer 6

You Have 2 min out and in before you lose code. turn in radio first to fill capasitors then shut down out and in turn on radio

Answer 7

pull the stereo code before unhooking battery post type of vehicle and i will tell you how to get it

Answer 8

you need to find a memory saver.it uses a nine volt batt. and plugs into the cig lighter.I got mine from MAC TOOLS but try sears.

Answer 9

contact hyundai

Answer 10

sparky 34 is correct.