Forget the LCD. Try this...
1. Mount trasmitter on the front of your car at the same frequency as the Multanova.
2. Hook it up to you detector to switch it on.
3. Turn power to MAX and watch the sensitive receiver in the Multanova fry.
4. Get $10,000 fine for illegal high powered tranmitter under communications act !
Heard an engineering student did this (don't think it was in oz). Cops could not
initially work out why speed camera's kept dying every time his mini drove past