Finally got enough posts to make a thread. Anyways I installed it, but now I get a pop and a little whine. The pop comes after I turn the HU off and whine is so low you gatta be **** to notice, but I did. I disconnected my ground and the HU is still grounded.

Are the two(?) extra grounds on the metra RCA unit (7551?) connected to a ground?

Also would the D3 ground itself through the bracket.

I've done some reading but can't find my mistake.

 

I believe those grounds are for the HU and the Bose amp. The HU should also be grounded through the diversity antenna.

 

Ok so they both have to be grounded or they need to be connected and there is alos a ground in the antenna? Ok so how the hell do i avoid making a ground loop?

 

What I did was connect all of my grounds from the harness together to the factory ground wire. It works fine. But, others suggest to create your own ground on most Nissans.

 

ok well where is the factory ground wire?

 

hey what kind of dash combo kit do you have?