Join Date: Jan 2006
Location: Near Denver, Life is Good!
Never ground anything to the aluminum frame, massive corrosion will result.
On my iWay I get a minimal amount of feedback thru my earphones, pretty much un-noticeable.
I have the GPS relay powered thru a Centech fuse panel, grounded to the battery negative.
There are some things you can do such as a ground loop isolator, route the power wiring away from any ignition sources etc...some of the electrical guru's maybe able to offer better advice.
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