2005 honda element

Help! I'm supposed to drive up to Yosemite for vacation on Friday, and now my 2005 EX won't start. Help! Synopsis: After not driving the car for 2 weeks, I tried to start it and the engine *barely* turned over. Dash & interior lights and the radio all worked, however. I tried jump starting it...

When i plug my MP3 player, or my phone into the auxiliary jack in my 2005 element i hear a loud booming sound in the speakers. Someone told me that this is normal, but ALSO i hear the sound between every song...if i change the song, or if i let it progress naturally to the next song. Does anyone...