Has anyone done this on vehicle that is in my sig? I tried a box from a local store that has been done many times and it is not so good in my truck. So much hissing that when the volume is off, I can turn up the gain on my sub and make it move an inch from distortion! And when it is on it is so poor sounding I cant listen to it. Seriously it is that bad. Basically this box is coverting the high wattage to a low voltage and it has adjustents on it for output. Then I am going through a Phoenix Gold PLD and EQ215ix to a 5 channel amp. All Phoenix Gold except for this box thingy. I have tried everything from adjusting all gains for over 3 hours and I can't get it to improve. I even hooked the preouts on my wifes car to the inputs on the PLD with long RCA's and then it seems beter. This is a new install so it did not just start all of a sudden. I also appears my EQ that has been sitting in a box for 4 years not in use is giving me trouble. I have to hit the EQ defeat button to make any sound. If it is in EQ it has no sound at all, not even any distortion. This EQ worked good when put away, is it possible that it can fail from sitting in a dry box in a warm basement? This is not the cause for my hissing, I tried bypassing it. Also all RCA's are away from power as far as possible. Any guesses or help is appreciated.

 

I had similar problems (I think), but I can't be certain without hearing it for myself... My problem was a bad ground on the amp. I would start with that. I'm terrible with grounds, so hopefully someone else will chime in for me. The factory head unit should be fine, if that's something you were concerned about. ...I don't have anything to say about the EQ...

 

I have still not figured it out but should by tomorrow evening. Was playing around with RCA's coming from EQ to amp and when they were unhooked from EQ with key off, they bumped EQ body and sparked pretty good. I thought huh?? That should have no power there coming out of the inputs on the amp. Then later I just took one of my older Alpine CD players and hooked to battery directly for testing purposes and when hooking the RCA up from the CD player to amp it started smoking from CD player when left RCA was hooked up and the CD player was still not even powered up. Then I went WTF is up with that. I unhooked all speaker wires from amp and tried it again. Just deck and amp and again smoke. I was thinking by now the deck is NFG so keep using it as a tester... why not, lol. So anyway if I hook the RCA up to the rear input on the amp it doesn't smoke but on the front input it does. On rear input hooked up I still get some volume out of speakers that are hooked up to front outputs. I think my fancy Phoenix Gold amp has **** the bed. The CD player seems to be okay, but I am sending in all my EQ, amp, and Alpine to get tested. It apears as though I will be spending more $$$$. I hope my EQ is okay it was f*cking expensive. Damb Phoenix Gold garbage. Oh yeah and it fried the little green box too. There is this funny smoke smell everywhere in my truck now.

 

I know this probably wont help, but I kept the stock head unit in my truck and added amp. I just used the little convertor box that taps into the actual speaker wires that run along the floorboards on both sides. I only had to used one set. It converts that to an RCA signal for my amp. Its cheap and simple but have never had a problem with it.

 

Thanks for that idea. That is what I tried and now everything including my little device, factory deck, amp and EQ are NFG. for some reason the voltage must have spiked coming out of LF door chime and fed back through system cause my amp has over 5 Volts coming out of the RCA inputs at all times now.

 

try the jl audio clean sweep. its what i'm gonna get for mine some time.