Need for Speed: Underground

Enter this codes at the title screen:

Left, Left, Right, Square, Square, Right, L1, R1 - $1000 in career.
                                                 RX-8 and Skyline in Quick Race
Up, Down, Up, Down, Down, Up, Right, Left      - Unlocks the Best Buy car Vinyl
Up,Up,Up,Left,R1,R1,R1,Down                    - $200 in career
Up, Left, Up, Up, Down, Left, Down, Left       - Unlocks A Hummer H2 Capone
Down, R1, R1, R1, R2, R2, R2, Square           - All Circuit Tracks
Up Up Up Up Down Up Up Left                    - Burger King vinyl
Up, Down, Left, Up, Left, Up, Right, Left      - ShineStreet Lexus IS300
Down,Up,Down,Left,L1,L1,L1,Down                - Unique Vinyl
DOWN, DOWN, L1, L2, L1, L2, L1, DOWN           - Nissan Skyline

Enter the following at the start screen:
R1, R1, Up, Down, L1, L1, Up, Down     - Unlock Visual Level 1
R1, R1, L1, R1, Left, Right, Up, Down  - Unlock Performance Level 2
L1, R1, L1, R1, Left, Left, Right, Up  - Unlock Performance Level 1
L1, R1, Up, Down, L1, Up, Up, Down     - Unlock Visual Level 2

Finding Hidden Shops:
Look at road signs around the city. They often have colored shapes (yellow
triangles, etc.) to guide the way to the shops or other important buildings.
Also, look for street-lights casting a colored glow. This indicates that
there is a shop very close.

 