Hello.
l have been looking all around the internet for a solution to fix the no sound in my Mazda cx7 2007 l just bought. It has a new radio and amplifier and l can see the radio do find stations but no sound. I haven't find the relay for the amplifier, that someone say can be not working. Can someone help me about this problem and tell me where the relay is located in the car. Picture would help because l have been looking in the trunk and under the hood but not find.
Thanks.

 

Factory stereo and Amplifier or aftermarket units? Brand spanking new, or new to you?

 

Both are new from Ebay, previous owner bought them. So I guess aftermarket but new.