Wiring help

[PNW_S13]

I just put all new 6.5 inch speakers in my 1991 240sx and it was all fine and they all worked until i turned the volume past 20 then the sound cut and i cant hear sound anymore like everything is on and the speaker like pop when i turn the car on so i think they still work fine and the head unit still turns on and works fine just no sound. The first thing i did is get a new head unit and i installed it but but still no sound now i'm stuck and have no idea what to do please help. P.S I looked for factory amp because i believed that is was just blown but i couldn't find it so i'm very lost

[jedi03]

http://zilvia.net/f/showthread.php?t=66156 start there maybe?

[S-Verteen]

Maybe check to see if the wires in the speaker are grounding to the basket. Had that happen to me before and i just bent them a little.

[s13 @ fullboost]

Did you use the factory speaker wire connections/? or did you wire the speakers directly up from the head unit?