lol my ground wire had almost jumped out from the amp.. what could had happened?

[8ight]

When i first started out in sound systems about 2 years ago i found my earth cable completely disconnected not touching anything, yet amp was still playing, luckily rather then draw earth through the RCA it actually did it through the seat. As the amp was screwed to the back of the seat which actually has a metal plate in it which is then connected to the chassis at some point.

Lots of people with interference issues have created ground loops by securing their amps to such things or using metal screws going into grounded material.

I have actually mounted that amp to the back of the rear seat's and it was some sort of metal (coulden use "normal" screws) so i am using some sort of self drilling screws that's metal. So will that help the amp to get an better ground when i am using a ground wire to?

Electricity takes the path of least resistance and that is a shitty way to ground anything in a 12v system so I doubt it will help so much as create a ground loop. When mounting to metal you don't want the screw touching the amp directly, it's best to fabricate a mounting solution that isn't grounded at the mount points. All screws are going to be conductive, assume all the metal in your car is grounded, assume one point for all grounds is best.

[Emmet]

Wicks, you're quite quickly becoming a solid source of knowledge on smd.

All the posts you make that I've seen are well thought out and informative. Great job man

[pintich]

When i first started out in sound systems about 2 years ago i found my earth cable completely disconnected not touching anything, yet amp was still playing, luckily rather then draw earth through the RCA it actually did it through the seat. As the amp was screwed to the back of the seat which actually has a metal plate in it which is then connected to the chassis at some point.

Lots of people with interference issues have created ground loops by securing their amps to such things or using metal screws going into grounded material.

I have actually mounted that amp to the back of the rear seat's and it was some sort of metal (coulden use "normal" screws) so i am using some sort of self drilling screws that's metal. So will that help the amp to get an better ground when i am using a ground wire to?

Electricity takes the path of least resistance and that is a shitty way to ground anything in a 12v system so I doubt it will help so much as create a ground loop. When mounting to metal you don't want the screw touching the amp directly, it's best to fabricate a mounting solution that isn't grounded at the mount points. All screws are going to be conductive, assume all the metal in your car is grounded, assume one point for all grounds is best.

yeah i have all the wiring grounded to the same place and directly under the amp its some sort of carpet so the amp is not touching the metal.

[8ight]

When i first started out in sound systems about 2 years ago i found my earth cable completely disconnected not touching anything, yet amp was still playing, luckily rather then draw earth through the RCA it actually did it through the seat. As the amp was screwed to the back of the seat which actually has a metal plate in it which is then connected to the chassis at some point.

Lots of people with interference issues have created ground loops by securing their amps to such things or using metal screws going into grounded material.

I have actually mounted that amp to the back of the rear seat's and it was some sort of metal (coulden use "normal" screws) so i am using some sort of self drilling screws that's metal. So will that help the amp to get an better ground when i am using a ground wire to?

Electricity takes the path of least resistance and that is a shitty way to ground anything in a 12v system so I doubt it will help so much as create a ground loop. When mounting to metal you don't want the screw touching the amp directly, it's best to fabricate a mounting solution that isn't grounded at the mount points. All screws are going to be conductive, assume all the metal in your car is grounded, assume one point for all grounds is best.

yeah i have all the wiring grounded to the same place and directly under the amp its some sort of carpet so the amp is not touching the metal.

If you have screws through the mounting feet and into the metal it sure is. Find some plastic washers for even the most basic isolation, it can't hurt.

[8ight]

Wicks, you're quite quickly becoming a solid source of knowledge on smd.

All the posts you make that I've seen are well thought out and informative. Great job man

I know, my rep/post ratio has been getting shittier. We ninja each other like twice a day

[pintich]

When i first started out in sound systems about 2 years ago i found my earth cable completely disconnected not touching anything, yet amp was still playing, luckily rather then draw earth through the RCA it actually did it through the seat. As the amp was screwed to the back of the seat which actually has a metal plate in it which is then connected to the chassis at some point.

Lots of people with interference issues have created ground loops by securing their amps to such things or using metal screws going into grounded material.

I have actually mounted that amp to the back of the rear seat's and it was some sort of metal (coulden use "normal" screws) so i am using some sort of self drilling screws that's metal. So will that help the amp to get an better ground when i am using a ground wire to?

Electricity takes the path of least resistance and that is a shitty way to ground anything in a 12v system so I doubt it will help so much as create a ground loop. When mounting to metal you don't want the screw touching the amp directly, it's best to fabricate a mounting solution that isn't grounded at the mount points. All screws are going to be conductive, assume all the metal in your car is grounded, assume one point for all grounds is best.

yeah i have all the wiring grounded to the same place and directly under the amp its some sort of carpet so the amp is not touching the metal.

If you have screws through the mounting feet and into the metal it sure is. Find some plastic washers for even the most basic isolation, it can't hurt.

that is true

[Wicks]

Wicks, you're quite quickly becoming a solid source of knowledge on smd.

All the posts you make that I've seen are well thought out and informative. Great job man

I know, my rep/post ratio has been getting shittier. We ninja each other like twice a day

LOL, thanks guys, much appreciated

Just trying to help.

I like to answer questions with facts so that the OP understands the issue afterwards rather than just a "yes/no" direction.

You know that ole saying, "Give a man a fish and you feed him for a day. Teach a man to fish and you feed him for a lifetime..."

I like this place and if we can help each other increase the general knowledge base then it just makes it better.

[8ight]

Wicks, you're quite quickly becoming a solid source of knowledge on smd.

All the posts you make that I've seen are well thought out and informative. Great job man

I know, my rep/post ratio has been getting shittier. We ninja each other like twice a day

LOL, thanks guys, much appreciated

Just trying to help.

I like to answer questions with facts so that the OP understands the issue afterwards rather than just a "yes/no" direction.

You know that ole saying, "Give a man a fish and you feed him for a day. Teach a man to fish and you feed him for a lifetime..."

I like this place and if we can help each other increase the general knowledge base then it just makes it better.

If everybody thought like this nobody would ever encounter the same problem twice!

I try not only to give an answer but also my thinking or experience that led me to it.