I have a 2004 Honda Accord with the Nav system. My battery died and after I got it charged my nav system radio cd etc would not work. I entered the code and the nav system began working but I cannot get the radio or cd player to work. Any suggestions?

all it takes is a dead battery and the world is lost.... sigh...
wow, first ever post here of a photo and for sure clear. wow.
you will go places fast,
yes , you lost the operator guide, (the PO did, im sure the dork)
so get one. never drive a car and for sure this hightech ones.
with no opr, guide. it has lots of very important facts for getting out
of trouble, and #1 is standardized. (IMMO failures? ouch)

the cars that have radio codes, and i presume nav unit.
the car came new with the code cars,
PO (previous owner ) lost it.
the guide says, write it down in the opr guide. i bet he didnt.
so the bad news. its here.
but good news its here (mostly....)
http://justgivemethedamnmanual.com/honda/honda-accord-coupe-owners-manuals/
rats, the navigator system pages are missing.
as you can see the radio codes missing ploy is the same as NAV

solution, (only) (or licensed lock smith shops)
https://radio-navicode.honda.com/

check the aerial ,it must have one ,without the correct information it will never work properly

take to a garage and get a diagnostics or buy a new raido i have one for sale ;-)

The earlier Honda models have a Mitsubishi DVD player for the SAT NAV Disk, ...and the 09 Models have different (Alpine DVD Player) thus earlier player will not read the later disks.
Solution is to obtain a updated disk produced for the Mitsubishi DVD player whih are available from Honda,(at a price)
Rgds

You could take the car to a dealer(Ali Bhai Motors in Karachi) who has the software disc to reinstall. I had a some what similar problem when I was changing the battery and the screen died

circuit board in cd player may be at fault

did any of you find one? i have just bought a SECOND HAND 2004 CRV but no sat nav manual - nothing on the net- any help appreciated.

Had battery replaced on 2005 DTS and afterward the radio/NAV/On-Star would not work.(Totally dead) The dealer who installed could not locate problem. (No GM dealer in Amador County, CA). I read several forums citing this/similar problems. I checked the three fuses labelled "radio, audio, NAV" by pulling, checking and reinstalling (all three were good). When I then restarted the car, everything was once again working! Poor connection? Corroded contacts? Some mysterious computer glitch? Who knows?

http://www.radio-code.com/