I have been experimenting with resistors in series to add voltage drop so that the voltage is right. Im not sure of the resistance of the strip and dont know what ohm value to have my resistor.
:!: Resistors are NOT a substitute for a voltage regulator in this application :!: . You cannot use them to regulate voltage into a variable load such as a digital LED strip. Do not connect the strip to a 12v source without a proper voltage regulator or you will damage the strip.