(T) Radio Issues

Hello all, hope you are all good.

My mkII Punto has a prob with the radio and im a tad stumped as to what it could be.
Basically i get bad/poor reception at times when im driving, sometimes it will fine then it will fade into static then back to normal.
Now i know its not the head unit as i have tried two units (factory and a LG stereo) and they both did the same, so I am thinkig maybe the HT Leads maybe on there way out and causing interference....pls correct me if im wrong haha

Anyway any ideas would be welcome and look fwd to hearing from you all