Replaced the battery in my 2007 Acura. I entered the 4 digit code....the nav system works but the radio doesn't turn on.

The radio Manual that came with the drivers manual , will give full instructions to do this, as it can change from model to model.

I presume you want to initialize or"sync" up your navigation
system to the satellite. You will need the 4 digit navigation
code and the 5 digit audio code. Make sure your vehicle is
parked out in the open where there are no trees over it. Turn it
on and the nav screen should be asking for 4 digit code.That
is the navigation code.If entered correctly the display should change to the disclaimer screen. For the radio to work turn
that on and you should see in the space where the station
frequency appears,the words ENTER CODE.When the 5 digit
radio code is entered correctly the radio should start working.
I hope this helps as it is as short as I can make it. If you don't
have those codes then you will have to get them from a Honda
dealer. Good luck

POSTED 19 times now (rad or nav) use search,
De'ja' vu , all over again. (LOL) RTM
RTM read the operators manual, its all there, here is a direct quote.

true for all cars, really all modern cars, 2001 to now. about. read your operator guide)


quote 14
2008 opr.guide.(lost it, huh?) Accord. non satellite Radio. NAV system. , all cars.... 2008 direct quote.

Quotes:
Your vehicle's audio system may disable itself if it is disconnected from electrical power for any reason.
To make it work again, you must enter a specific five-digit code with the preset buttons.
Because there are hundreds of number combinations possible from the five
digits, making the system work without knowing the exact code is nearly impossible.

You should have received a radio code card that lists your audio system's code and serial numbers. {glove box find}
It is best to store this card in a safe place at home. In addition, you should write the audio system's serial number in this owner's manual.

If you lose the card, you must obtain the code number from your dealer.
To do this, you will need the audio system's serial number.

If your vehicle's battery is disconnected or goes dead, or the radio
fuse is removed, the audio system will disable itself. If this happens,
you will see ''ENTER CODE'' in the frequency display (on the screen on models with navigation system) the next time you turn on the system.
Use the preset buttons to enter the five-digit code. The code is on the radio code card included in your owner's manual kit.
When it is entered correctly, the radio will start playing.

If you make a mistake entering the code, do not start over; complete the
five-digit sequence, then enter the correct code. You have 10 tries to enter the correct code.
If you are unsuccessful in 10 attempts, you
must then leave the system on for 1 hour before trying again.

The system will retain your AM and FM presets even if power is disconnected. {only on newer cars'

General information on Honda and DIY:

{the code can be obtained from any Honda dealership (you must give him/her your radio serial number (sticker off radio)"}
or any locksmith with a license from..NASTIF

Honda1 ServiceExpress (Same info as ISIS)

Acura ISIS (Dealer version w/ advanced search)

http://nastf.org/i4a/pages/index.cfm?pageid=3462ex.cfm?pageid=3462

all newer hondas, and acura. (works the same way)
open glove box take put operators guide, read radio page.
here is the quote. (posted many times)

quote
2008 opr.guide.(lost it, huh?) Accord. non satellite Rad.

Quotes:
Your vehicle's audio system may disable itself if it is disconnected from electrical power for any reason.
To make it work again, you must enter a specific five-digit code with the preset buttons.
Because thereare hundreds of number combinations possible from the five
digits, making the system work without knowing the exact code is nearly impossible.

You should have received a radio code card that lists your audio system's code and serial numbers. {glove box find}
It is best to store this card in a safe place at home. In addition, youshould write the audio system's serial number in this owner's manual.

If you lose the card, you must obtain the code number from your dealer.
To do this, you will need the audio system's serial number.

If your vehicle's battery is disconnected or goes dead, or the radio
fuse is removed, the audio system will disable itself. If this happens,
you will see ''ENTER CODE'' in the frequency display (on the screen on models with navigation system) the next time you turn on the system.
Use the preset buttons to enter the five-digit code. The code is on the radio code card included in your owner's manual kit.
When it is entered correctly, the radio will start playing.

If you make a mistake entering the code, do not start over; complete the
five-digit sequence, then enter the correct code. You have 10 tries toenter the correct code.
If you are unsuccessful in 10 attempts, you
must then leave the system on for 1 hour before trying again.

The system will retain your AM and FM presets even if power is disconnected. {only on newer cars'

General information on Honda and DIY:

{the code can be obtained from any Honda dealership (you must give him/her your radio serial number (sticker off radio)"}
or any locksmith with a license from..NASTIF

Honda1 ServiceExpress (Same info as ISIS)

Acura ISIS (Dealer version w/ advanced search)

http://nastf.org/i4a/pages/index.cfm?pageid=3462

your radio may need its code put in to work again.

I just bought my 3rd Acura Legend...but never encountered this problem. They removed my battery to place in another vehicle on the lot...and when they replaced my battery, the radio locked up and would not do anything. I called the Acura dealership in my area....have an appt for Monday, she said $51.00 to get code. I was reading on all the websites i could find about Acura radio codes...then i come accross one posting about an Acura Integra. It said her code was under her ashtray. I went out to my car...pulled my ashtray out. There was a white sticker with a 5 digit number first, and then an E number. I turned my radio on, entered 5 digit number...it BEEPED. I turned it off, and turned it back on...to the most WONDERFUL BOSE stereo system!! It worked ya'll!! I was so shocked!! It may not help everybody....but my Acura Legend 4Dr Sedan has MUSIC now!! So i thought i would pass it along...saved me FIFTY dollars!!

I just bought my 3rd Acura Legend...but never encountered this problem. They removed my battery to place in another vehicle on the lot...and when they replaced my battery, the radio locked up and would not do anything. I called the Acura dealership in my area....have an appt for Monday, she said $51.00 to get code. I was reading on all the websites i could find about Acura radio codes...then i come accross one posting about an Acura Integra. It said her code was under her ashtray. I went out to my car...pulled my ashtray out. There was a white sticker with a 5 digit number first, and then an E number. I turned my radio on, entered 5 digit number...it BEEPED. I turned it off, and turned it back on...to the most WONDERFUL BOSE stereo system!! It worked ya'll!! I was so shocked!! It may not help everybody....but my Acura Legend 4Dr Sedan has MUSIC now!! So i thought i would pass it along...saved me FIFTY dollars!!

You need to get the serial number off the sticker attached to the radio. It will require pulling apart your dash. Call an Acura dealership with that serial number and they should be able to provide you the code. Or you can take it directly to the dealer but you will be charged labor.

you need the serial number from the radio unit and the navi system (not the screen). If you are the origal owner, that was given to you with the books. the radio code is a 5 digit number and the navi code is a 4 digit number.they may have put a sticker with a 5 digit number on the inside walls of the glove box. if there is a sticker with more that 5 numbers, call you dealer with that number, that may be your serial number. the navi system has 4 digit code

Your navigation code and radio codes writed on stikers on glovebox. Just open your glovebox and look on left side of gloivebox, not inside but outside. Open glovebox and look on left side. On my 2005 Acura RL NAV and Radio codes is different but it both on glove box. Sometime you even need to remove your glovebox cover to see those codes.