I am installing an amplifier in my car that is 57 amperes. Now I am going to put two 30A fuses on the power cable. The remote lead wire is my main concern, because my radio fuse is only 16 amperes, and to start up an amp might cause a short. I do not even know if the remote lead will interfere, but I am assuming it might cause a problem. My car is a 1992 300ce, with 118,000 miles. What can I do to prevent any electrical problems for installing a Infinity 611a amplifier.

Mercmike, whats up?

Nice progress on the stereo install!

The wire with the fuse is the constant + 12 volt wire coming off the battery. Thats the wire that basically carries a great deal of power to the amp, and provides it with constant power. The two 20 amp fuses should be enough to supply constant power to your amps.

The Remote wire only sends a +12 signal to the amp to turn it on, and the draw off of that is only like a quarter of an amp. no need for a fuse, but I find that its good practive to put a fise in the line anyway.

__________________
-Justin

91 560 SEC AMG - other dogs dd
01 Honda S2000 - dogs dd
07 MB ML320 CDI - dd
16 Lexus IS250 - wifes dd

it's automatic.

Maybe I am missing something, just putting in two 30 amp fuses will not make the wire carry 60 amps, 25 amps means typically # 10 wire, so # 6 will do. Maybe I read it wong, and you are running two seperate lines!

Hey Justin,

To start off I want to thank you again for everything.

And, I am going to just put one 60A fuse on 4 gauge power cable. And about the remote lead, its really good to here that its not going to take up much power. Also is there any other electronical issue that general happens with installing amps, or is it just the power and lead? I mean the power and its fuse and the lead

And peter, I do not know much but I think if the amplifier is lets say "48" amperes, you need about a 50 amp fuse. Not to shure on this, you might want to ask a pro like Justin.

What hes trying to do is make it so that each fuse will allow the line to carry 60 amps... Like on my car, I have two parellal 40 amp fuses on my 0 gauge power wire running to my amps... The cable was enough to carry the power, but the fuses filtered too much of the power out.. Instead of sticking a bigger fuse in something that is only rated to go to 30 amps, I added a second fuse so that the total capacity of the line is now 60 amps...

__________________
-Justin

91 560 SEC AMG - other dogs dd
01 Honda S2000 - dogs dd
07 MB ML320 CDI - dd
16 Lexus IS250 - wifes dd

it's automatic.

How about if the fuse is too large for the amplifier. Lets say 50amperes for a 20 amp amplifier. To be honest I cant figure out how many amperes mine is. I have gone to different websites and got different ansewers.

675 watts x 1 at 2 ohms.
400 watts x 1 at 4 ohms.

I am going to have a 2 ohm set up so, I figure it is 675/13.8=49A, I also have calculated, (((675x2)/13.8)/3)=32A.

Mercmike, how many amps is the fuse on the side of the amplifier? A bigger fuse wont kill the amp AFAIK.

__________________
-Justin

91 560 SEC AMG - other dogs dd
01 Honda S2000 - dogs dd
07 MB ML320 CDI - dd
16 Lexus IS250 - wifes dd

it's automatic.

It has 2 30A fuses

Yeah, you should be good.... Good luck, and hope it all works out.

__________________
-Justin

91 560 SEC AMG - other dogs dd
01 Honda S2000 - dogs dd
07 MB ML320 CDI - dd
16 Lexus IS250 - wifes dd

it's automatic.

Thanks a lot. Seriously A LOT