Hi ,
I’m from the UK and I am now on garmin map pilot software v8 and have found a way to get the speedcam icons and alert sounds together on my satnav. Follow this UK website forum link http://www.pocketgpsworld.com/modules.php?name=Forums&file=viewtopic&t=97167 and read the full 4 page thread for all the info. The last page has my method.
I have tested it but not extensively. It is the best method I’ve found so far. I’ll let you know if I find out more. If it works for you then maybe you can make me an hororary EU citizen after we’ve left it !!!!