Detect Magic amped effect states: "As long as you detect the presence of magic, you gain a +1 status bonus to saves against magic for 3 rounds"
As you are certainly having at least one magic item on you, you can choose to always get the bonus. It's kind of annoying before you get to level 7 as it prevents you from detecting other sources of magic, but once at level 7, and as long as you choose a low level magic item, you can always benefit from the bonus while still pinpointing the presence of stronger type of magic.