Hi. Please any ideas (apart from changing the aerial) for testing the aerial on my 2010 plate Thunder edition Ranger? Is the radio earth prone to corrosion? Where is the radio earth, is it just the 2 screws at the top of the 'A' pillar? Has anyone fitted a DAB head to a Ranger? Have thought about fitting one and plugging it into the Aux i/p, but where to fit as the blank panel between the Vol & Tune control knobs is taken by a Parrot Hand-free mobile phone unit. Thoughts/ advice please.