installing aftermarket radio. need help.
 

im installing a new kenwood radio. i have done this in the past to all kinds of cars. i thaught of myself as good installer. i can not get it to turn on the amp. i have been looking in the forums and it tells me to put 12v power to the white wire to turn on the amp. this is not working. i even installed the factory headunit and it works fine. does anyone know if there is a trick to doing this.? please help. its all taken apart and i miss having music. please help. thanks.:excited:

sorry it a 2003 4.4 x5 without navigation.

Funny, I am having the same issue and I can't believe noone has chimed in to answer you question.

Anyone know?