Radio Reception after Car Detailing

[LouUKUS]

Ok, developments:

- Took a look at the antenna in the window - couldn't see anything amiss
- Discovered that if I turn the rear window heater off the reception is fine

Weird - but solves the problem I guess (unless the rear window needs heating!)

So - live with it like it is, or keep investigating?

[CTScott]

Originally Posted by LouUKUS

Ok, developments:

- Took a look at the antenna in the window - couldn't see anything amiss
- Discovered that if I turn the rear window heater off the reception is fine

Weird - but solves the problem I guess (unless the rear window needs heating!)

So - live with it like it is, or keep investigating?

There is a noise filter behind the left C-pillar that is supposed to suppress the electrical interference from the defogger to the antenna. It may be disconnected or bad.