2005 Yaris

[jaheni]

Hi. I have a 2005 Yaris with Fm Radio/CD player. Couple months ago the radio's (that had been working great) reception dropped. I can hardly tune to any station now. The aerial seems ok, not sure if car wash has managed to get any water in.
I have a wireless FM transmitter Ive used to listen some music I have on my mobile phone, it barely picks that one as well...

Is this typical prob with this year's model? All ideas appreciated!!

Thanks