"I was booing, too, sometimes to be honest with you," Stewart said after Chicago got its first victory by rallying from an 18-3 halftime deficit.
"The good thing about it is that we got cheers at the end and that's all that matters because we won the game," Stewart said.
Stewart, who completed 13 of 24 passes for 160 yards and also rushed for 52 yards, struggled at times and said some fans behind the bench were especially brutal with their comments.
"I know sometimes it's all of wanting to see us succeed, but sometimes things can get carried away. You have to be able to ignore that," he said.
The Raiders (2-3) got five field goals from Sebastian Janikowski, but he also missed the first extra point of his career and had a 47-yard field-goal attempt blocked in the second half.
"It's probably what we deserved for not playing well across the board," Raiders quarterback Rich Gannon said. "We ended up on our heels in the fourth quarter. We couldn't put them away."
The Bears' struggling offense showed some punch against the Raiders' soft defense, moving from its own 27 to the Raiders 30 in the final 3 minutes, 30 seconds.
Stewart kept the drive going by leaping for a first down on a fourth-and-1 from the Bears 49 with 22 seconds to go.
After his scramble to the 31 was called back by a penalty, Stewart pumped and allowed Dez White to get open for a 29-yard gain to the Raiders 31.
After a running play to get the ball in the middle of the field, Edinger -- after the Raiders used a timeout to try and ice him -- hit his third field goal of the day. He's 8-for-8 this season.
"It builds our confidence that we can win now, instead of having everybody saying 0-16," Edinger said.
Oakland appeared on the verge of blowing the game open in the first half, but had to settle for field goals four times after getting inside the Chicago 25. That allowed the Bears to hang around.
"This is the hardest loss I've taken," said Oakland defensive back Charles Woodson, who intercepted two passes and recovered a fumble.
"I can't see it getting any worse."
The Bears (1-3), penalized 11 times for 97 yards, got back in it when Marty Booker caught a 14-yard TD pass from Stewart on the first play of the final quarter to make it 18-13.
The Raiders were on their way to what could have been a clinching score when Gannon completed passes of 21 yards to Jerry Rice and 18 to Tim Brown. But when a pass deflected off Doug Jolley's hands, R.W. McQuarters intercepted it and returned it 43 yards to the Raiders 45.
McQuarters had questioned the loyalty of the teams' fans after they booed loudly last Monday night when Green Bay dominated Chicago in the first game at the refurbished stadium.
His interception led to the Bears' first lead.
Stewart had a 16-yard run and Anthony Thomas, who rushed for 123 yards on 22 carries, followed with a 20-yard gain to the Raiders 8. Two downs later, Stanley Pritchett ran in for an 8-yard TD with 6:58 to go, giving the Bears a 19-18 lead. Stewart then rolled in for a 2-point conversion.
Gannon's 12-yard pass to Rice helped the Raiders move in position for Janikowski's fifth field goal, a line drive that hit the left upright and went in from 49 yards, tying it at 21 with 3:30 left.
Among Janikowski's four first-half field goals was a 33-yarder on the final play of the half to give the Raiders an 18-3 lead.
The Raiders moved easily down the field on their first possession, going 68 yards in 16 plays against the league's weakest run defense. Zack Crockett went in from the 1 for the score.
But Janikowski's extra-point attempt was wide -- his first missed PAT in four seasons. He'd converted 147 in a row, including nine this season.
- Gannon was 16-of-34 for 183 yards. Rice caught three balls for 51 yards and was defended many times by rookie Charles Tillman, making his first start for the Bears.
- Chicago linebacker Warrick Holdman sprained his left ankle late in the first half and didn't return. Booker hurt his side late in the game.
The Associated Press News Service
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