Called up tech support at ICOM. Told him my compass problem and he agreed it is most likely the speaker magnet. (for a little speaker that has a huge magnet) Looks like it is possible to rip it out and use and external. There is a external speaker jack pigtail. However when removing the speaker I will risk the the waterproof-ness of the unit. I will have to seal up the holes when the speaker is gone. (dab some silicone in the holes) I may give this a try tonight. He said to definelty buy a good waterproof external 4 ohm speaker for it even if it is mounted inside a console.
Slip, yeah I do but the radio is clearly the culprit. I took everything off and added it back one at a time noting comapss changes...whrn the radio went in, it spun like a top. Didn't move much at all for anything else...the most about about one degree when the 10" gps when in and that is inches to the compass.
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