I second that. As long as there's no LED fans, you don't HAVE to connect hdd / power LED's just because they're there. Simple solution.
If you dont even want the cables to tuck away, just pull the case LED's out of their mounts. It's not difficult. I've always changed the hdd/power LED's on all my personal cases. (I hate blue)
Main: i5-3570K, ASRock Z77 Pro4-M, MSI RX480 8G, 500GB Crucial BX100, 2 TB Samsung EcoGreen F4, 16GB 1600MHz G.Skill @1.25V, EVGA 550-G2, Silverstone PS07B
HTPC: A8-5600K, MSI FM2-A75IA-E53, 4TB Seagate SSHD, 8GB 1866MHz G.Skill, Crosley D-25 Case Mod