2005 Honda Odyssey, stereo severe feedbac

Talentco,

I had this same problem. Fortunately for me, the shop foreman at my local Honda dealer (Keyes Honda, Woodland Hills, CA) was very helpful. He went online to Honda's website and accessed the wiring schematics for the Active Engine Mount system which is the system that sends the audio feed to the Active Noise Control system and the audio system. He found the one wire that sent this signal in a wiring harness that is right above the parking brake (pictured below). Unfortunately, he was the one who did the work and didn't show me exactly which wire he clipped, but I am sure if you took this picture to your dealer and this post, they will be able to locate the wire in the schematics and clip it. I am pretty sure it was a pink wire. This immediately solved the problem. As a side note, we test-drove the van afterwards and even with the stereo off, I could hear no odd noises when the ECO mode activated. I think the ANC is more of a gimmick then an actual necessary feature of the van.

I hope you will use this info and re-install your system. It is definitely worth it! I also installed an 8" JL sub in an old enclosure I already had. It fit nicely under the center tray between the front seats.

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Jason,

Thanks for the great post and picture...

I'm assuming you ran into the same feedback in your JL sub as I did...

Did you update everything?  What did you update to besides the JL 8"

Thanks

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I was on a pretty tight budget, but I HAD to do some minimal upgrades. Surprisingly, the sound is decent and the volume can go fairly loud without distorting even though the speakers are running off the head unit.

Removed the plastic tray under the front passenger's seat and installed the Alpine amp in it's place. Two screws holding it in place, all controls are accessible.

This picture is taken from the passenger's door, leaning in towards the dash so you can see the front of the 8" JL Microsub. You can't really see it when sitting in either front seat unless you lean forward and are looking for it. I also usually have a big 150 cd wallet leaning in front of it blocking the view completely.

The sub BARELY fits under the tray. I used a small block of wood to prop up the left side so that the sub isn't extending out of the box and hitting the carpet. Not a perfect match for the interior, but not too bad either considering I bought it in '95 and this is the 3rd vehicle I have installed it in.

I didn't take any pictures of the upgraded speakers as the grilles don't really show much.

Equipment list:

Front Speakers: Infinity 6002i 2-way $59.96

I got pretty big discounts on all of the equipment because I had just been to Circuit City and told the guy at Good Guys the total price they had offered. They didn't have the exact same models for everything, so he picked the closest matches and then discounted away until he got to the price I had given him from Circuit City.