No Sound - 06 Avy C4

[N901 4]

Hi All,
I was fairly confident it was my amp that was the issue causing me to lose any sound from my speakers. I sent it to get it repaired and the guy just called me and said while one of the switches was dirty the amp powered on without an issue. I couldn't see the power light as it had fallen inside the amp. Anyway, the stereo head unit turns on when I flip the stereo switch, the inline fuse appears to not be blown and nothing from a wiring standpoint has changed as far as I know. When I put a meter to everything it seemed like all was good. People have mentioned the ground wire but I really don't know where that is located. Any other thoughts would be appreciated.

Thank you!

[Wylie_Tunes 146]

1 hour ago, N901 said:

When I put a meter to everything it seemed like all was good. People have mentioned the ground wire but I really don't know where that is located

You need to move away from speculation and deal in absolutes. Did you place a meter across the amp's main power cable terminals and measure battery voltage? If so, then you ruled out a ground cable as well. Voltage more then .5V less then battery voltage, could be an issue. You need to then determine if the drop is happening on the B+ or B- cable.

Next, did you measure for voltage on the small turn-on terminal and power cable ground? 

Did the shop test the amp for output on all chnls, or just that it powered up? This kind of leaves you hanging. 

[N901 4]

1 minute ago, Wylie_Tunes said:

You need to move away from speculation and deal in absolutes. Did you place a meter across the amp's main power cable terminals and measure battery voltage? If so, then you ruled out a ground cable as well. Voltage more then .5V less then battery voltage, could be an issue. You need to then determine if the drop is happening on the B+ or B- cable.

Next, did you measure for voltage on the small turn-on terminal and power cable ground? 

Did the shop test the amp for output on all chnls, or just that it powered up? This kind of leaves you hanging. 

Hey Wylie_Tunes, I put the meter everywhere and on everything I could and was getting 12 volts. When I didnt see the light on the amp ever I just figured that was the problem. The biggest problem is just that I'm not great with wiring like this. I"m sure someone like yourself could figure it out in 2 minutes. The amp shop said they tested all channels but only found one switch was dirty. He claims to have 50 year old Rockford Fosgate techs on his team. I'll keep digging