It looks as if third base could be an option.
"You don't call it the hot corner for nothing," Trumbo said.
Trumbo also homered and C.J. Wilson pitched three scoreless innings in his second spring outing for Los Angeles, which gave the left-hander a $77.5 million, five-year deal during free agency over the winter. Wilson allowed one hit, struck out two and walked one.
With Albert Pujols set to play first and first baseman-designated hitter Kendrys Morales expected to return to the lineup soon, the Angels are searching for ways to find time for Trumbo. He led the team with 29 homers and 87 RBIs during his rookie year last season.
The plan is for Trumbo to play in 50 games at third to go along with time at first, DH and right field.
Trumbo, who had yet to have a ball hit to him in one start at third, made a great play on Arias' ball and also handled one ground ball flawlessly.
"More challenging plays will help me get my confidence," Trumbo said. "Some of that stuff will take some time."
Bourjos bounced a single to right field and Aybar followed with a sharp single to right. Bourjos opted to test the throwing arm of Giants right fielder Tyler Graham and raced to third. Graham's throw was slightly late and Aybar took second.
Bourjos then scored in Howie Kendrick's fly ball to right field with Aybar taking third. Aybar then narrowly scored on Trumbo's foul popup behind third, beating Conor Gillaspie's throw that short-hopped catcher Eli Whiteside.
Angels manager Mike Scioscia has said this spring that he could "mix and match" a set of players to hit in front of Pujols in the third slot but is hoping to settle on two.
Bourjos has been mentioned as a leadoff candidate. He hit .289 and had a .337 on-base percentage against left-handers last season while hitting .271 overall with a .327 on-base percentage.
Aybar, the team's usual leadoff man last season, hit .279 with a .322 on-base percentage, but only .216 with a .284 on-base percentage against left-handers.
Giants right-hander Shane Loux pitched 2 1/3 innings and was charged with three runs, two earned, and four hits. He hasn't appeared in the majors since he went 2/3 with a 5.86 ERA in 18 games with the Angels in 2009.