The salary cap is pretty easy to manipulate. If you don't like a player for whatever reason, than re-negotiate his contract so that he doesn't get a signing bonus. Than work out a trade with another team and you won't take a hit against the salary cap for trading him.
Change Song
To change a song at the main menu (or any where exept in gameplay or in a match) Press the Y button. Hold down the Y button. The help screen will pop-up. Then keep the Y button down and press the L or R button. R goes to the next track. L goes to the previous track.
Earn Madden Cards With EA Bio
Gain levels in your EA Bio by completing specific challenges and playing other EA Sports title to unlock Madden Cards. Unlockable Cards include:
Level 2: #204 Bingo! Cheat
Level 4: #246 1990 Eagles Classic Team
Level 6: #186 Steve Spurrier Coach
Easy Tokens
Go to gamemodes then go to two minute drill pick the vikings as offense and the admirals as defense start the drill and then go to shotgun formation keep pressing right with the D-pad untill you see shotgun slot strong go to the play called WR Fly the throw to Randy Moss (X) and almost 90% of the time he will catch the ball.
Free Advertising
At the beginning of each week, check a game later than yours time-wise (Monday night being the best choice so after you play your game, the week doesn't end). Before playing your game, go to Owner's Box and max out money on all advertising. Play your game and you'll receive the attendence for the max advertising. When your game is over, go back to Owner's Box and drop all advertising to $0. Go back to Play Week, uncheck the checked game and simulate the rest of the week. When you go back to Owner's Box and check your balance sheet, the amount of overall spending for attendance will stay the same, but you'll recieve the attendance boost.
Play Football 101 to Earn Easy Tokens
One place to garner quick Tokens is Football 101. Run through all of the plays in your playbook to get a substantial helping of Tokens, which you can use to purchase Madden Cards.
Trade for Any Player
In Franchise Mode, Create a player (or 3, or 20) and set all of his attributes low so that his overall rating is 12. Sign him as a free agent for cheap then return to Create-A-Player and max out his stats. You can now trade this player to any team for the very best players in the NFL.
Unlock Cheerleader/Pump Up Crowd Madden Cards
To unlock the Cheerleader/Pump Up Crowd Madden Cards, beat the Game Situation in Mini-Camp. The team who you complete the challenge with is the Cheerleader/Pump Up Card you will unlock.
Unlock Madden Cards in Mini-Camp
Get Gold in Mini-Camp challenges to unlock Madden Cards. Cards directly relate to the challenges you complete. For instance, getting a Gold in the Ground Attack challenge will yield a Priest Holmes Card. Be sure to get Golds on all of the difficulty levels to collect all of the cards!