Hello. I have a problem with my audio in Infiniti G35x 2004 sedan. First of all it doesent find any radio station, it keep on seeking without ending. I dont know about tape but CD is the only thing thats working but still not as it suppose to. The CD starts working after i switch ignition but the audio quality is terrible, it gets better after starting the engine. But thats not everything, the audio quality gets really bad randomly, sometimes it is like that from the beggining, sometimes it gets bad after the car makes a little hop or when i touch it, but it also happen just by itself. It gets better after I tap or punch the radio panel. I triend to dissemby and put it back into one piece, i checked the wires but it didnt help. The wierd thing I found out is that my voltage meter shows a little voltage on the radio casing and a little bit on the car body. The car was a bit damaged in the rear so the window could be replaced, I bought it like that so i dont know what was done, and as far as I know the antenna is located in the rear window.
Does anyone know what can be the issue?
Do you guy have a diagram where the antenna wire goes? I would also be grateful for a diagram with all the radio plus wires voltage sa I could chcech if everyting is alright over there.

 

No antenna is connected!

Very likely the source of your problem?

See page AV 40

Might be a missing ground?

Have you checked out the FSM for your vehicle?

http://www.nicoclub.com/FSM/G35/Sedan/2004/av.pdf


AUDIO ANTENNA
AV-37
AV
AUDIO ANTENNA
PFP:28200
"System Description
AKS0000E
With the ignition switch in ACC or ON, power is supplied


through 10A fuse [No. 6, located in the fuse block (J/B)]


to audio unit terminal 10.
Ground is supplied through the case of the antenna amp.
When the radio switch is turned ON, antenna signal is supplied


through audio unit terminal 5


to the antenna amp. terminal 2.
Then the antenna amp. is activated.
The amplified radio signals are supplied to the audio unit through the antenna amp"

Good luck


Telcoman