LG and Sprint are rolling out the MUZIQ today and it’s gunning for the top of the Mobile Music heap. Not only does it store up to 4,000 songs, but it also incorporates a built-in FM transmitter that feeds your music to any FM radio within 10 feet. A lot of mobile music phones lack the capacity to support any SD cards larger than 2GB, but the MUZIQ is not run-of-the-mill and supports up…