Sorry to post it here, but it seems like the A/V forum is rarely browsed.

I spend about 10 hours yesterday installing the AMP and 4 speakers into my car. However, when I drove today, I've encountered some problems, which really annoy me, and I don't know what to do about them. I don't have the money to get it done at a professional place so I had to do it myself with a friend of mine who knows alot about car audio.

Here is the situation:

I used the existing speaker wire from the stock amp. I spliced into them. My amp accepts RCA and regular inputs. When I just put the wires in, the sound was bad. So I spliced in the RCA cables, and used the RCA inputs. Now, when I play my music loud, it sounds good, crisp and clear and loud. (much better than stock). But when I make the sounds lower, i hear a lot of hissing sounds in my speakers. The way it sounds right now is horrible. I used the same amp and speaker in my last car (accord), and they were working perfectly. Unfortunatelly I don't know the specs of the amp. I know it's 4channel and is powerfull, and speaker are good also.

If any one knows what my problem is from the above description, please help me out with some advice.

Thanks.

 

Which wires are you using for the signal input to your aftermarket amp? The colors of the wires would be helpful...

 

I am using the stock wires that I took out of the stock amp. All of them were different colors, I don't remember exactly what they were, but I am sure they were all speaker wires.

 

It's important to know which wires you cut... there are 8 wires that go into the amp from the stock deck that are signal wires (line level).

There are another 8 wires that leave the amp and head for the speakers which are speaker level.

If you put RCA plugs onto the 8 'speaker' wires and plugged that into your RCA inputs on your amp, it isn't gonna work right.

Those wires would need to go into the speaker level inputs on your amp... which should be screw down (or push button) terminals.

Without knowing exactly which wires were cut, its hard to know what's wrong.

Are the wires that you put the RCA plugs onto part of the same wire that is now hooked to the speaker output on your aftermarket amp?

 

I had the same problem and quess what fixed it I went out and bought a nice Alpine deck. Im sorry but splicing RCA causes too much interference causing the hissing sound. Why do you think most radios have 4 volts pre-outputs and some 8 volts..basically for signal strength and splicing the rcas is a big for crystal clear highs with no noise. I mean you can use a noise suppressor but youll be just doing that the noise will still be there. Get yourself a nice deck with a 7" screen and you'll be one happy mofo.

 

If it's done right... it will sound just as good as any middle-end aftermarket deck out there. Don't have any hint of noise whatsoever in my setup with the stock deck. Having some more voltage wouldn't hurt though. The stock signal is weak.

You may need a ground loop isolator, but that's it.

I do agree that it can create all kinds of problems if you are not very careful about making sure all the connections are made correctly and done well.

 

Oh yea when are you buying my 3 way 6x9 MB quarts brand new for your rear. Im selling really cheap brand new the D series 6x9 3 way.