Pioneer AVIC-F700BT Problem

[chitowndad]

I like the idea of swapping the current head unit with another head unit that has more amp preouts. My avic D3 had several preouts and when I put in the ground loop eliminator on one of them (only needed one) it solved my whining issue so I'm hoping that it will work for you.

Interestingly when I did all of my wiring I had the car off and didn't notice my ground loop issue until I was ready to go for a drive. My whine was noticeable at low volumes when when I cranked it up you couldn't notice. Because I already had a new amp installed I simply put the ground loop eliminator on one of the preamp outputs just before the amp since that was the easiest location.

I was able to move my amp ground wire around to different locations and the problem went away but it eventually came back in a few days. It was all solved when I installed the ground loop eliminator.

Good luck and no problem on helping out.

I also have an issue with the amp giving out a pop sound when I leave the head unit on and pull the key out. I've since figured out that if I turn off the head unit before pulling out the key it doesn't happen. It's because True's instructions have the head unit wired to be always on and my amp is powering down when I pull the key out. If I power it down before turning off the car it's ok. I think if I switched back the power lead wiring to not always be on when the ignition is on I wouldn't have this issue. Some people thought that my amp was too powerful (2000 watts on 4 channels)

Good luck.

-Steve

[PaulSeales]

Steve,

My Dad and I cut the main earth to the head unit tonight and ran a seperate wire from the connector to a new earth. Funny thing happened when we grounded it. The wire sparked! It seems to be getting a back feed from somewhere and I've no idea where.

[chitowndad]

What do you mean by main earth?

[chitowndad]

is main earth = ground?

Anyone else out there an electronics expert? Is your ground wire a power source?

[PaulSeales]

Sorry Steve - main earth = ground the thick brown wire in themain HU connector.

Paul.

[TriGem2k]

Paul dont forget to do the update for your F Series.

I have the Avic-F90BT. The boot up may be a little slow but the F Series is awesome!

[chitowndad]

Trigem2K,
Does your avic F series have only one pre amp output? Do you have any ideas for Paul?

Paul,
So I'm thinking that your connector isn't correct. Is the Avic Ground wire in the right position that matches up with the brown ground? I'm wondering if you've got a hot switched wire connected to the ground and when you touched it to the frame, it's sparking. Try an volt/ohm meter and check the volts on the head unit. Touch the + to the meter and negative to a metal source.

I'm surprised that the other guys on the forum have no ideas on this issue but you've definately got a ground issue.

-Steve