I have a Hitchi Radio/CVD player KC-92CD and I don't know what batteries I need for the remotre

This link will take you to the KC-90 Manual:
http://www.manualslib.com/manual/154633/Slant-Fin-Kc-45.html#product-KC-90

When you disconnect your battery and then reconnect it again, it disables the radio. This is an anti-theft protection for your car radio.
The enable your radio the activation code is in your vehicle owner's manual. If you do not have this code you need to go to your Hyundai service centre and get them to enter this code for you.

For more details type in this site name "Electro-help" (DO NOT copy and paste the site name from here. It may lead you to wrong place) to search box of your search engine [not in the address bar of your browser], and press "Enter". It is an electronic equipments service help site.

Note the position of hyphen in between words in site name. The site will appear as it is in web; subtitled as Service help to electronic home entertainment equipments.

Pull up older posts.

You can locate this site, either at the bottom part of first search page, or at the top of second.

Detailed descriptions are there to help you.

Try disconnecting the battery for a few seconds and try to eject the cd, if this don't work you can take the cd player to the dealer ship and they can send it to be repaired

Try checking your fuses. If the radio doesn't come on a code is not going to do any good. As far as I know these radios don't require codes anyway.

Hi, Please get the code here :
www.dvdexploder.com/
www.download-info.com/dvd/index_new.htm
www.220-electronics.com/dvd/ht.htm
www.videohelp.com/dvdhacks
Regards, Jay__INuhnY

DVD-R is the most compatible DVD media for this player.

KC27 Maxon CB need 10 batterys rechargables 1.2 v for 12v total, use the most amperes or miliamperes possible, if you have a charger case or 27-CRDL Cradle for 27-KC you can use 13.8v regulated 5 amps. máx. but need external antenna. When you put a radio in charger case it switch to use external mic, voltage, antenna & speaker. Actually 2500 mAh "AA" battery is very common and cheap. You can charge batterys on to radio case, only need a 200 mAh eliminator at 15v for 6 hours.

just buy one no need code.
http://www.order-bulk.com/Game-Accessory/Other/Fast-searchtype-universal-TV-remote-control-one-key-set-up-NO-CODE-NEED.html

Enter in your model # in the search:
http://www.hitachi.com/products/index.html