aaronsmith02 Posted October 21, 2013 Report Share Posted October 21, 2013 I'm in the process of redoing my system, I don't even have the main power cable hooked up to the battery yet, but I can hear like hiss coming from my rear speakers. The radio is off, but I have speaker wires running from the back of my factory HU to give high level signal to my AC LC7i, then rca's running to my amps, then speakers wire ran back up to behind the factory HU and tapped into the factory harness. All wires are ran on passenger side opposite of the main power wire. It has me stumped caused the power wire isn't even hooked up yet, radio off, and yet I hear this hiss from my rear when the car is running, but it does go away when the car isn't running. anyone have any suggestions? Link to comment Share on other sites More sharing options...
DangerRanger94 Posted October 22, 2013 Report Share Posted October 22, 2013 Check all the grounds from battery to chassis ground and engine ground. 94 Ranger Std. Cab Bagged and Bodied Audio under construction: Center Console Ported Wall 4x SA-8 D2 Soundqubed 2200d.1 @ 1Ohm Pillar Pods 2x Fosgate P132 - 2x Audiopipe ATR3721 2x Fosgate PPS4-8 Pro - 2x Fosgate PPS4-6 Pro 4x Fosgate Punch 300.1 Big 3 Upgrade Kandywirez XS D3400 09 Lancer Turbo 1- 12" DD 512B SoundStream Rub1000.1 (turned way way down) Avix-930bt Link to comment Share on other sites More sharing options...
BigManAC Posted October 22, 2013 Report Share Posted October 22, 2013 ^^x2 I had the same problem and grounding was the issue 2001 Saturn L200-Sony MEX-BT4100PFRONT STAGE:- (4) Crescendo PWX 6- Cadence XA250.2SUB STAGE:-Fi Audio BL 15 (Sealed Off)-Crescendo BC2kELECTRICAL:- Singer 240A alt - XS Power D3400- SkyHigh OFC power/speaker wire- Big 3 with SkyHigh 0gaugeBuild Log: Click HereScores: 146.5db @ 29hz Outlaw Link to comment Share on other sites More sharing options...
bassman619 Posted October 23, 2013 Report Share Posted October 23, 2013 Could be ground or cheap rcas You need trunk space to get groceries and shit...bitches love groceries Link to comment Share on other sites More sharing options...
OrzechNJ Posted October 23, 2013 Report Share Posted October 23, 2013 maybe speaker wire is cutted somewhere.. sometimes Loud is NOT pretty Sounds like its safe to go ahead and bend that ass over. Link to comment Share on other sites More sharing options...
bassman619 Posted October 23, 2013 Report Share Posted October 23, 2013 Ground head unit directly to bare metal on fire wall..make sure ground on amp and output converter are tight and connected to bare metal..also there are two kinds of rcas..if u have the wrong kind ur wires and amp are working against each other .and that will create noise You need trunk space to get groceries and shit...bitches love groceries Link to comment Share on other sites More sharing options...
aaronsmith02 Posted October 24, 2013 Author Report Share Posted October 24, 2013 I have the speaker wire ran from HU to the audio control LC7i, but the main power line isn't hooked to the battery, so nothing is seeing is power yet? The HU has power but the speakers aren't really connected yet since the amp sees no power or signal. So it still has be me puzzled. Link to comment Share on other sites More sharing options...
DangerRanger94 Posted October 24, 2013 Report Share Posted October 24, 2013 I have the speaker wire ran from HU to the audio control LC7i, but the main power line isn't hooked to the battery, so nothing is seeing is power yet? The HU has power but the speakers aren't really connected yet since the amp sees no power or signal. So it still has be me puzzled. Check the grounds on the actual car yet?? Battery ground to chasis and battery ground to engine block?? 94 Ranger Std. Cab Bagged and Bodied Audio under construction: Center Console Ported Wall 4x SA-8 D2 Soundqubed 2200d.1 @ 1Ohm Pillar Pods 2x Fosgate P132 - 2x Audiopipe ATR3721 2x Fosgate PPS4-8 Pro - 2x Fosgate PPS4-6 Pro 4x Fosgate Punch 300.1 Big 3 Upgrade Kandywirez XS D3400 09 Lancer Turbo 1- 12" DD 512B SoundStream Rub1000.1 (turned way way down) Avix-930bt Link to comment Share on other sites More sharing options...
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