Is there a frequency required to tune in the stacker just purchased car wuth no manuel with it

press the mode button and move it to the other fm frequencies ( fm 2 or 3 etc)

Hi, This sounds like an inshop repair. The technical term for the changer being set to 88.5 but works in 97.5 is "frequency drift" and could be rectified with the use of a calibrating instrument/frequency counter and an alignment tool assuming no component replacement required. Frequency drift can be caused by component failure, humidity, temperature etc.; The part "my car off the changer stays on" could be faulty trigger on inside the changer, faulty remote trigger on in your head/radio/controller unit. Good luck and hope this gives you a few ideas. Kind regards.

here is a copy of the Manuel which may help.

http://www.rotel.com/content/manuals/rt935ax_eng.pdf

There is no service mode fix to this problem. The tuning frequency response will depend on the tuner fitted with it. google.com/+GopakumarGopalan

Manually preset one of the stations to the iTrip. Follow the instructions beginning on page 9 of the manual.

Have a look here >>>>>

http://www.clarion.com/jsp/search/ProductManuals.do?country=us&language=en

I just solved this problem on my Ford Edge 2010. Start the dvd. Hit the FM button on the remote. It will pop up an FM radio frequency in the top left corner of the screen. For example, ours is 88.7. Tune the car radio to that frequency and the sound should come through the speakers. Hope it works for you.

HI THERE I JUST PURCHASED EUROVOX RADIO WITH 10 CD STACKER FROM EBAY BUT THEY NEVER SUPPLIED ME THE CODE TO ACTIVATE THE UNIT BOUGHT IT OF COMMODORE WRECKER IN SUNSHINE VICTORIA CAN YOU HELP PLEASE

move to a new country

This is a USA model and by default in the USA all FM stations end in an Odd number. This is completely normal. you can try holding preset 1 and 5 down while pressing the reset button on the unit and it may allow you to switch to a Europe style of tuning.