Car Amp no power but wire has power

[dhho1]

My car subwoofers stopped working about a month ago. I have that setup for at least 4 years, a sony Amp and 2 10" Infiniti reference subs. About a month ago, the Sony amp power led light didn't light up and of course the subs didn't work. I got a new amp and connect to the power wires and the new amp still won't turn on (led light didn't go on). I checked the power wire and it measured around 11.5 volt. I turned on the car and the remote wire also measured 11.5 volt. But if I connect all the power/ground/remote wires to the amp, the remote wire has 11.5 volt but the power wire will measure 0 volt. I tried 2 different amps and got the same problem. Any idea? Thx.

[parrotscaraudio]

Have You checked the earth on the body that its not loose
Plus remove ALL pant where the earth conects to the body
Use a BOLT and NUT not a screw
This is common on old installs
If not Give me a call 0430033821 Australia

22 years in car audio instalation
www.rlsnell.20m.com
www.autowreck.com.au
http://z3.invisionfree.com/APV/index.php?
http://www.youtube.com/user/parrotscaraudio

[dhho1]

[quote=parrotscaraudio]Have You checked the earth on the body that its not loose
Plus remove ALL pant where the earth conects to the body
Use a BOLT and NUT not a screw
This is common on old installs
If not Give me a call 0430033821 Australia

22 years in car audio instalation
www.rlsnell.20m.com
www.autowreck.com.au
http://z3.invisionfree.com/APV/index.php?
http://www.youtube.com/user/parrotscaraudio[/quote

pants and earth? I am confused.

[parrotscaraudio]

Originally Posted by dhho1

My car subwoofers stopped working about a month ago. I have that setup for at least 4 years, a sony Amp and 2 10" Infiniti reference subs. About a month ago, the Sony amp power led light didn't light up and of course the subs didn't work. I got a new amp and connect to the power wires and the new amp still won't turn on (led light didn't go on). I checked the power wire and it measured around 11.5 volt. I turned on the car and the remote wire also measured 11.5 volt. But if I connect all the power/ground/remote wires to the amp, the remote wire has 11.5 volt but the power wire will measure 0 volt. I tried 2 different amps and got the same problem. Any idea? Thx.

Plus remove ALL paint where the earth conects to the body

[parrotscaraudio]

[quote=dhho1]

Originally Posted by parrotscaraudio

Have You checked the earth on the body that its not loose
Plus remove ALL pant where the earth conects to the body
Use a BOLT and NUT not a screw
This is common on old installs
If not Give me a call 0430033821 Australia




pants and earth? I am confused.

pant = paint Typo not that hard to figure out

[PaulD]

earth = common or ground. Where does the black ground wire from the amp(s) go ?