Is it necessary to disconnect the neg battery cable when I do this? I have only had the car a month, but won't this cut the power to the radio and make me have to put a code in or something(which I don't have)?

I put one on my friends C5 a few years ago and do not recall disconnecting the battery.

Thanks

 

I put one on my 97 Z-28 mn6 and did not discount the battery, then I put one on the 03 vette mn6 and did not discount the battery. I am not sure what the real directions say. I did not have any trouble with either car after doing it without the battery discounted.

 

There is no need to disconnect the battery...

 

you dont have to disconnect, but when fooling with any electronics it is probably a good idea to disconnect.

You will not lose your radio - well maybe the station set,but that is all.

 

It's the normal "disclaimer" included with a lot of products. Keeps the lawyers (bless their pointed little heads) happy.

 

I've done several of them... no probs and no need to disconnect.

 

Thats what I thought. Put it in no problem without dissconnecting the battery.

Wooohooo! My first Mod!

 

Uh oh! The fever has begun!

 

FYI - I’m assuming by your post that the Theftlock on the Radio has been activated by a previous owner and you don’t have the unlock code. Follow this procedure to unlock the Radio and inputting a new code if you want…

Radio Unlock Procedure

The following procedure will give you a new code that you can use instead of your personal code. Using this new code, you can “unlock” your radio and then “re-lock” it with a new code if you wish.

Prerequisites: The radio must be in LOC mode NOT in INOP mode. Let me explain. If you have activated the Theft-Deterrent feature of your radio and loose power, the radio goes into LOC (Theftlock) mode. With the ignition on, you must use the MN and HR buttons to enter you personal code in order to unlock it (The instructions are on page 3-27 in your Y2K Owner’s manual). If you fail to enter the correct code eight (8) times, the radio goes into INOP mode. You have to wait an hour with the ignition on before the radio returns to LOC mode (go for a long drive somewhere).

Procedure:

1. Turn the ignition ON (The radio displays LOC)

2. Hold down the Radio Presets 2 and 3 buttons for six seconds

3. The radio display changes from LOC to a three-digit number. Write this number down. Don’t take forever, fifteen seconds max before the next step.

4. Press the AM/FM button

5. The radio display changes to another three-digit number. Write this number to the right of the first one.

6. You now have a six-digit number, the first three digits are from STEP 03 and the last three digits are form STEP 05

7. Call 1 800 537 5140

8. Press 1 then # (pound). You’ll hear “Invalid Code, try again”

9. Press 139010 then # (pound). You will be asked to enter your four or six digit code followed by * (start)

10. Enter the number from STEP 6 then * (star)

11. Listen to the four-digit number and write it down. It will be repeated twice

12. Turn the ignition ON (The radio displays LOC)

13. Use the MN and HR buttons to enter the code from STEP 11

14. Press the AM/FM button. The radio display changes to SEC Your radio is now “un-locked” and usable.

The Theft-Deterrent feature is STILL active! If you want to disable it, use the instruction on page 3-27 in your Y2K Owner’s manual. Use the code from STEP 11 instead of your personal code.