I'm playing Major Soundwave with Raider Ravage and Raider Laserbeak. It's my turn and all of my characters are untapped and in Bot mode. All of my opponents characters are tapped. I attack, or use the tap ability, of both Ravage and Laserbeak, then attack last with Soundwave, triggering his "When this attacks -- Untap each of your Spy Patrols" ability, which untaps Ravage and Laserbeak. After Soundwave's attack, since they were untapped before my turn ended, can I attack/tap again with Ravage and Laserbeak?

You can attack again, but you cannot use tap abilities once you’ve started attacking.