im in the process of putting in a headunit in my '07 and i cant get the headuunit to turn on...what can i do to fix this?

 

make sure you have a power and a ground. if those are present it should turn on

 

What harness are you using?

 

i'm using the metra 70-2202 harness...i finally got the head unit to power up, becuase i led one of the wires to the same fuse as my subs, but now my subs arent working properly is it becuase i have two wires on the same fuse? if so where can i put this second wire at in the fuse box?

 

sub amp should go on the HU remote instead of the fusebox now uve upgraded to aftermarket

 

If I remember correctly the 72-2202 does not have a power wire in it, where do you have the red ACC wire coming off the deck running to?
On the new deck the red wire should run to a switched power source from the fuse box, something that turns on and off with the car, the yellow wire should run to something that keeps power all the time, thus why its called const power. And the blue or blue with a white stripe wire should run back to the remote turn on on the amp