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Man that is weird. Even plugged into my cig lighter I get barely any hiss or whine in my 980. Check all your coax connections as well as the speaker jack connection. Also adding a good inline noise filter helps. Ground radio to a good frame bolt. Under the dash where the steering is located there are normally some good frame bolts as well as the seat frame bolts. Make sure you have removed all paint as well. And one last thing, check under the hood at the wiring for the electrical system. My old work van almost every wire under the hood for grounding had paint over the metal. I must have sanded down 10-15 of them and used no-ox on all the connections. This and bonding of exhaust to frame and adding a good noise filter helped keep my noise levels down a lot! And I was running radios with a more sensitive receive then the 980. My magnum 257hp was a magnet for noise!! But I am suprised the 980 is giving you issues. They normally have a good receive. Hope you get it resolved and hope some of this info helps. Again, good luck.

<blockquote data-quote="222DBFL" data-source="post: 539414" data-attributes="member: 36544"><p>Man that is weird.&nbsp; Even plugged into my cig lighter I get barely any hiss or whine in my 980.&nbsp; Check all your coax connections as well as the speaker jack connection.&nbsp; Also adding a good inline noise filter helps.&nbsp; Ground radio to a good frame bolt.&nbsp; Under the dash where the steering is located there are normally some good frame bolts as well as the seat frame bolts.&nbsp; Make sure you have removed all paint as well.&nbsp; And one last thing, check under the hood at the wiring for the electrical system.&nbsp; My old work van almost every wire under the hood for grounding had paint over the metal.&nbsp; I must have sanded down 10-15 of them and used no-ox on all the connections.&nbsp;&nbsp; This and bonding of exhaust to frame and adding a good noise filter helped keep my noise levels down a lot! And I was running radios with a more sensitive receive then the 980.&nbsp; My magnum 257hp was a magnet for noise!!&nbsp; But I am suprised the 980 is giving you issues.&nbsp; They normally have a good receive.&nbsp; Hope you get it resolved and hope some of this info helps.&nbsp; Again, good luck.</p></blockquote><p></p>

[QUOTE="222DBFL, post: 539414, member: 36544"] Man that is weird. Even plugged into my cig lighter I get barely any hiss or whine in my 980. Check all your coax connections as well as the speaker jack connection. Also adding a good inline noise filter helps. Ground radio to a good frame bolt. Under the dash where the steering is located there are normally some good frame bolts as well as the seat frame bolts. Make sure you have removed all paint as well. And one last thing, check under the hood at the wiring for the electrical system. My old work van almost every wire under the hood for grounding had paint over the metal. I must have sanded down 10-15 of them and used no-ox on all the connections. This and bonding of exhaust to frame and adding a good noise filter helped keep my noise levels down a lot! And I was running radios with a more sensitive receive then the 980. My magnum 257hp was a magnet for noise!! But I am suprised the 980 is giving you issues. They normally have a good receive. Hope you get it resolved and hope some of this info helps. Again, good luck. [/QUOTE]

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