shooting music video with (2) XL1s cameras

question i am shooting a music video with 2 xl1s cameras, my problem is how do i get the 2 to lock to a timecode of some sort so i can edit in multicam, and 2nd how would i get the audio track which is cd and will be pumped thru loud speakers so really keep in sync. I have only film expericence usin dat audio and smart slates and tc gens. so go easy on me thansk a lot, oh yea I am doing this this weekend end and will post the video for all to see when done, it's for MTV europe