GME radio are made in Australia too thats something to think about. I have had only good things to say about Standard Communications. I did some work on the MNEA standard input on the 600d radios to interface with HumminBird Chart ploters the 600d needed a software up grade for it to work i supplied the RS232 raw data in ASCI format to Standard communication and with in 3 working days i got the radio back. The IPX rating is based on AN NZ standards for Dust and water protection. I have had 2 boats with the AMFM radio and the 600D and 600 and yet to have problems.