No Sound from speakers

[tiburon03]

I just recently installed a new Panasonic LCD head unit in my dash. I am still trying to get it to work because I am not getting any sound. I rechecked all the wiring and everything seems to be in place. I get picture and I can do anything i want while the unit is on, just no sound. The weird thing is that i can hook up an external speaker and it plays fine, so I know i am getting power. I have been installing for several years in every automobile i have owned and i have never had this happen. Can anyone give me any idea on what the problem could be or has anyone had a similiar problem that they fixed?? your help would be greatly appreciated. Thanks.

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[BulldogSr04 10+ year member]

are you running the power for the speakers on the hu's internal amp? sounds like a crossed wire to me...

 

[tiburon03]

Yes, it is running from the head unit. What wires could be crossed that could cause this problem? Thanks.

 

[BulldogSr04 10+ year member]

the positive and negative from any of the speaker wires. check the connections behind the hu and in the doors as well