It's All In The Muzak

i love my garmin nuvi 660 (i even named the guidance voice after my hideous 3rd grade teacher from richmond, virginia). the problem is that i love the music from the tomtom commercials. i don't get why garmin doesn't have a catchy tune like that. i mean, if garmin had a fun tune like tomtom, i could go around humming it all day. really, is it too much to ask?