noise reduction

hello 2005 model 407 2.0 I have a car while listening to music, the CD player's audio is muted automatically, it turns on and off again, but after a while, it dims again.

There is a piece attached to tape, it needs to change. It has a name like a transistor, the tapes knows that it has a price of 25- TL.

thank you look at the mountaineers