2004 Honda EX 4 cylinder radio light does not work

Check the fuse!

Has it ever had Rice Krispies spilled into it ?

No it doesn't. The head unit is faulty and requires repair/replacement.

Believe there is a service bulletin on this issue.
Call Honda customer service to see if your car
qualifies for extended fix on this.

radio bad

kzingraff, I have a similar situation to Craig Waldie. I have a 2005 Durango and the CD player has not worked since I replaced the battery. Just like his 2004, the radio works perfectly, just not able to use the CD player. How can this issue be fixed?

This is the Radio Anti Theft feature which is activated whenever there is a complete power loss to the radio (as in when it is stolen out of the car). A Honda Tech or ASE Certified Auto Tech would have plugged in a Memory Minder into the OBDII slot to not only prevent this, but also protect the Main ECM from resetting which could create drivability issue.
If the Honda is now registered in your name, take it to your local Honda Dealer. They should be able to pull the Radio Serial number without removing it like in the older Hondas, simply a matter of pushing the right buttons. With the Radio Serial Number, Your Proof of Ownership (Registration) and a Photo ID that matches it, either the Parts Department Or Service should be able to give you a Radio Code for it.
As for the CD ERR codes, the CD player probably is broken and will need to be sent out by Honda to a outside facility to be repaired. That will probably run between $250 to $350, plus the labor cost to remove it and reinstall it.
If you just bought this Honda, or any vehicle, I always strongly recommend having a Manufacture Dealership do at least a oil change on it and check what other services may be due, you might also discover it has Recalls that have yet to be completed that they can take care of for you. Catch the little problems before they ruin that Great Deal you just got buying it.
Strongly suggest you also join Hondas “OwnersLink”, you can find it on the Honda web site under Owners Resources links. In the future you can use this to recover your Radio code after you’ve been registered for awhile. Also keeps you notified of Recalls, Service Issues and even sends out Discount coupons (Latest is a $119 trunk cargo trays for $39, that is a Fantastic Deal).
Good Luck

ur vehicle needs a new stereo unit..

I have the same problem I bought one with the same problem. Does any one have a solution.

Help

I think that the problem is in the connection between the cd-player and the radio antenna on the roof.