Hi all, recently I upgraded my JVC headunit to an Alpine CDA-9857, aftermarket harness to honda harness. I have front,rear, and sub rca's from the radio down drivers side of the car to 2 amps in the rear, power is ran down passenger side into a distribution block, separate ground for each amp (Fosgate 4-ch, crossfire 2-ch). When I start the car I have engine noise through my tweets in the pillars, if I pull the radio out of the dash back towards the shifter it goes away. I have a 2001 Civic LX Sedan.
Engine whine through speakers
- Thread starter elianthony
- Start date
The radio is grounded through the harness adaptor.
only reason i suggest the one above the colum is that i forgot it the other day putting my dash in and was getting mad feed back into my sub because my head unit was trying to use the amp as the ground, turns out i had forgot to plug that one tiny black wire back in up under there. lol
Thanks everyone for the help, I will check the grounds and make sure they are good. If nothing else I will try grounding the ground wire from Alpine to the frame back there.
Thanks, I will check that, pain in ass to get rca cables from under the dash to the radio in that car. I miss my Sony ES C90, optical from the headunit back to the processor in the trunk, no noise to pickup. I think Alpine make a processor that connects with a DIN cable, might look into that.
When ever running a multi amp set up n having an amp power the mids n highs its a good idea to ground the radio in the exact location you grounded the amps.
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do you have extra rcas hanging off the back of the headunit? if you do and they ground sometimes it has a staticy engine noise.