I run an Origin B2 GPS detector which docks with Whistler Pro radar and laser heads. I think 3450 is the model number.
These are from about 4 years ago.
My laser and RD head (the under bonnet lump of a thing) both appear to have packed up at the same time and for no apparent reason. I had a spare laser head so I switched that out and have ordered about the last RD head in the UK, given that Origin don't play the game anymore and I can't find one @ Whistler.
Is there anything I can do to see what's up with the one I've got, just in case it's a fuse or something?