hello

i bought my mazda 5 - 2012 six Months a go.

From the beginning when i used the radio in fm mode

is play with a lot of noise (never mind what station he is)..

Meanwhile, i replace 3 multimedia radio and there is still noise.

one week ago i replace the mount base and the antenna...

again still noise...

what i can do to hear clear station in fm mode?

 

But it works fine in CD or AUX mode?

Sounds like you might have a bad connection from the antenna wire into the radio itself. That is a lot of work to dig the radio assembly out of the dash, or pull the whole panel apart because I don't think there is an easy access underneath.

Otherwise the radio itself is bad.