I am installing the Metra kit in my 2004 G35 Coupe, and got the 7550 wiring harness.
I have connected this to the OEM 225w Bose amp, but i got no sound, there is two cables on the 7550 wiringkit i dont know where to connect, and its the black/white and Blue/white cabels, the amp turn-on, and the amp ground.
Please help.

 

don't worry about those... fold them over and tape them up. those aren't neccessary, just connect the blue white from the deck harness to the blue on the 7550 harness

 

My deck harness doesent have any blue/white wire, but it has a yelow/white that is marked EXT AMP, and the 7550 harness blue wire is marked power antenna.

 

Tryed to connect the blue/white to the yelow/white, but still no sound, seems to me like the amp does not get any power

 

what deck are you using.
try taking the yellow white to the blue of the 7550 - the power antenna is also the amp turn on wire. I have no clue why the 7550 is labelled otherwise

 

Bought the deck from China, so it has no name, but it has all the intersting stuff like bluetooth handsfree, touch screen, dvd, radio, navigation, sd card reader, usb port, etc
So i dont need to connect the black/white cable, called amp ground?

 

Found out about it, had to set up the deck player menu to ext amp, and i used my yelow/white cable connected to the blue/white cable, now it work like a charm.
But one thing, i think it is extremely loud, and mabe i hear some distortion.

 

if it's distorting, don't turn it up so loud and adjust the bass and treble settings accordingly. - mainly the bass

 

Thanks alot for your help, i`ll give you the adress to this China web shop, lots of cheap dvd players with navigation, etc there.

www.autodvdgps.com