imupabove Posted January 13, 2010 Report Share Posted January 13, 2010 whenever i accelerate i hear a humming noise coming from my speakers inside the car. and when the car is on i hear hissing noises coming from the speakers, very annoying. my headunit and EQ are not grounded to the car's chassis. it is wired up with the cars wireharness, i used a crimp wire connector. and rca's and power wires are away from each other. amps grounds are good. i tried a ground loop isolator, that didnt work. can it be cheap RCA's? well im not sure if they are cheap, they are rockford but they are the very old. i dont even know if they sell them no more. but the RCA's are purple. Quote iDA-X200/Clarion EQS746 RF T500-1bd (2) 12" RF HX's Kicker 350.4 Alpine & Polk Speakers Stock electrical Link to comment Share on other sites More sharing options...
uhoh_45 Posted January 13, 2010 Report Share Posted January 13, 2010 are they ran near the power wire, and what brand deck do you have ? Quote R.I.P! (Nov-29-2009) 92 explorer - 4 Atomic Apxx 15s duel .7s - 4rth order bandpass wall -4 powerbass XA-3000D's - 16 8volt batts wired to 16 volts - (9+/9-) runs 0gauge - 152.3 Db @ 29hz BUILD LOG current build 97 chevy lumina4 - 1 Atomic Apx 18 - 6 cube slot port trunk sealed off - 1 powerbass XA-3000D - 2 optima G31s in spare tire18 1 run 1/0 lumina build log Link to comment Share on other sites More sharing options...
imupabove Posted January 13, 2010 Author Report Share Posted January 13, 2010 are they ran near the power wire, and what brand deck do you have ? no they are not. its an alpine ida-x200 Quote iDA-X200/Clarion EQS746 RF T500-1bd (2) 12" RF HX's Kicker 350.4 Alpine & Polk Speakers Stock electrical Link to comment Share on other sites More sharing options...
imupabove Posted January 18, 2010 Author Report Share Posted January 18, 2010 are they ran near the power wire, and what brand deck do you have ? can bad quality RCA's be the reason for whining noises? Quote iDA-X200/Clarion EQS746 RF T500-1bd (2) 12" RF HX's Kicker 350.4 Alpine & Polk Speakers Stock electrical Link to comment Share on other sites More sharing options...
Enellz Posted January 18, 2010 Report Share Posted January 18, 2010 can bad quality RCA's be the reason for whining noises? Ground your RCA output at the deck (more than likely this is what it is, happens all the time) Try a different pair of RCAs Make sure all grounds are sanded down to bare metal Quote 2003 CHEVY TRAILBLAZER AKA The Batmobile Pioneer 6000UB Sundown SAZ-3000D 2 Audio Q HDC3's 40' of 1/0 Gauge 2 Big Rear Batteries A 38 HZ Box KICK ASS! Link to comment Share on other sites More sharing options...
imupabove Posted January 18, 2010 Author Report Share Posted January 18, 2010 Move any RCA cables away from the power wires. Re ground (sand down paints and make a good connection) bad quality RCA's can sometimes cause this noise if they arent insulated good. like hone audio rca cables are a no go in cars. usually not enough insulation. (rubbers etc) im thinking it may be the RCA's. they are rockford fosgate punch, but they are really old. i hope its the RCA's. Quote iDA-X200/Clarion EQS746 RF T500-1bd (2) 12" RF HX's Kicker 350.4 Alpine & Polk Speakers Stock electrical Link to comment Share on other sites More sharing options...
Enellz Posted January 18, 2010 Report Share Posted January 18, 2010 im thinking it may be the RCA's. they are rockford fosgate punch, but they are really old. i hope its the RCA's. Trying grounding at the Deck first. Quote 2003 CHEVY TRAILBLAZER AKA The Batmobile Pioneer 6000UB Sundown SAZ-3000D 2 Audio Q HDC3's 40' of 1/0 Gauge 2 Big Rear Batteries A 38 HZ Box KICK ASS! Link to comment Share on other sites More sharing options...
imupabove Posted January 18, 2010 Author Report Share Posted January 18, 2010 Ground your RCA output at the deck (more than likely this is what it is, happens all the time)Try a different pair of RCAs Make sure all grounds are sanded down to bare metal my deck and eq are not grounded on the car's chassis, the ground wire from deck and eq is wired up with my car's ground wire harness. i used a crimped connector. you follow me? i couldnt find an area to ground both devices. Quote iDA-X200/Clarion EQS746 RF T500-1bd (2) 12" RF HX's Kicker 350.4 Alpine & Polk Speakers Stock electrical Link to comment Share on other sites More sharing options...
imupabove Posted January 18, 2010 Author Report Share Posted January 18, 2010 Trying grounding at the Deck first. how exactly would i do that? Quote iDA-X200/Clarion EQS746 RF T500-1bd (2) 12" RF HX's Kicker 350.4 Alpine & Polk Speakers Stock electrical Link to comment Share on other sites More sharing options...
Guest Posted January 18, 2010 Report Share Posted January 18, 2010 how exactly would i do that? take a piece of wire (any wire as long as its copper) and twist it around the negative shield of the rca's on the headunit itself then screw it securely to an existing screw on the outside of the headunit Quote Link to comment Share on other sites More sharing options...
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