Aftermarket audio setup

[tooslowtahoe]

00 Tahoe z71.
Installed a pioneer head unit alpine 4channel amp and alpine 6.5 in all doors. My problem is once volume is at a certain level play back stops on the door speaker's rear roof speakers still play.
I have the doors speakers connected directly to the amp
Could the factory amp cause this in some way?? Help is needed.

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[badazzbulldog]

sounds like a bad ground to amp and it goes into protection mode and shuts down,if you shut system down and turn back on does sound come back?

 

[tooslowtahoe]

Yes it does come back on. Right now I only have one speaker connected to the amp with new speaker wire and it still does it one volume is turned up other wire plays fine. What type of screw should be used for the ground.

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[sewlow]

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Use one of these, mounted to bare metal. Use as short of a ground wire as you can. Same size or greater than the power wire to the amp. Grounded to the frame is ideal, but not always possible.

 

[tooslowtahoe]

Well I've tried everything I can think of. I even ran a ground from the engine to the amp same out come. The factory amp is completely out so I know it's not that. Rewired all the speakers with new wire. One thing I did notice while playing music once my multimeter drops below a certain voltage the amp goes into protect mode I can't figure out what's causing this or if that's the problem or not.

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[badazzbulldog]

where is the main power lead for the amp connected and what gauge wire is it

 

[tooslowtahoe]

To the battery. 4gauge Rockford. It only puts out 55w RMS x4. So I figured that gauge would be fine. I'm really starting to think its the amp. I found an old mtx amp I'm going to swap but I'm not sure if it even works guess I'll found out.

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