when i trun on my radio i get no sound it comes on but no sound
Did you replace the battery or jump start someone?
yes replace the battery
You're going to need the radio code. Right now it thinks it thinks it's being stolen. Look in the owners manuel. If it's not there call the dealer.
Looking for a Used CX-7 in your area?
CarGurus has 1,453 nationwide CX-7 listings starting at $2,495.
Search Mazda CX-7 Questions
Mazda CX-7 Experts