I purchased my first GPS device recently, a GO 740 TM, and one reason was because I read that an iPod could be connected to play music. Sweet! So after I get it, I discovered that trying to find the cable to connect the iPod was pretty damn tough (at least in the States). So I figured I could load up a micro SD card with music and use that. When I go through the Music menu options, I don't see the SD card anywhere. Is it possible to play music via an SD card in my GO 740 or am I SOL?