Suspended shock jock Kyle Sandilands has more problems brewing. His chart-topping radio show has taken a huge hit on Nielsen's radio ratings, released today.

The ratings were taken from June 28 to September 5. Sydney's 2Day FM breakfast show lost more listeners than any other radio show in Sydney or Melbourne for the period.

The show went from commanding a 12 per cent share of Sydney breakfast listeners to just 9.8 per cent, a drop of approximately 18 per cent in total listening audience.