Ok, so we had to block up the aerial hole when fitting the aftermarket spoiler.

The question now becomes, how do I get a signal for the radio

(a pretty high end Pioneer MEHP9000 jobby

- so sticky on crap is not an option)?

I know that some of the Fords we've had in the past have had the aerial built into the rear screen/demister circuitry.

Is there something off the shelf like this?