How many volts does stock stereo output? 2007

I need to know how many volts the stock stereo outputs at. I run a kenwood KAC-2404s amp and recently switched from my aftermarket stereo back to stock because I wanted a cleaner look.

The only problem is there are no RCA outputs on the stock headunit. The amp I use luckily accepts speaker level inputs.
I hooked everything up, everything is working, and then that night the amp shuts off, after fumbling around for a while I determined that the problem was that I had blown my 50A fuse in the main power wire.
I assume it is because i had the input sensitivity set improperly (around .7v).

I could go through a ton of fuses trying to determine where to adjust the input sensitivity to, or i could ask you guys! :D

High level input wouldn't blow the 50A fuse. You either were running the amp too hard, or have a bad ground connection.

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Originally Posted by ontarian_frog

High level input wouldn't blow the 50A fuse. You either were running the amp too hard, or have a bad ground connection.

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I got the fuse replaced and the entire system souned like it was lacking power, the sound was washed out, tinny, almost no bass (even with 2 12s). I thought maybe i had damaged the amp, so to make sure it wasn't the headunit I played a song from my phone to the amp RCAs. Perfectly fine.

I think I may have messed up the speaker signals when i was fumbling around with the amp. I need to go buy some butt crimps and ill redo it all. Right now the wires are twisted and hotglued.

Could a lack of ground make speakers sound trashy?

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Originally Posted by Kyleellwood

I think I may have messed up the speaker signals when i was fumbling around with the amp. I need to go buy some butt crimps and ill redo it all. Right now the wires are twisted and hotglued.

Could a lack of ground make speakers sound trashy?

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Depends what you mean by lack of ground. Typically you are driving a coil from a pair of wires one of those wires is marked negative and then there is chassis ground from the car. You CAN NOT mix the two. Now the amp will need power and most aftermarket systems typically run a dedicated ground from the battery to the amp.

You are better off using a wire nut before moving the butt crimp connectors. Twisting the wire and using hot glue as an insulator is just a bad practice as it's messy and you could have used a wire nut. Butt connectors is a good quality connection however soldering is the best with a shrink wrap.

the speaker wires aren't going to cause the power fuse to blow. You screwed up something with your wiring.

If it plays ok with the rca input, your problem is somewhere in your high level input circuit.

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Originally Posted by ontarian_frog

If it plays ok with the rca input, your problem is somewhere in your high level input circuit.

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Yeah, that's what I determined. I figure it will be much more simple to invest in some of these. Especially because my system will only be getting more and more complicated in the months to come.

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Originally Posted by Kyleellwood

Yeah, that's what I determined. I figure it will be much more simple to invest in some of these. Especially because my system will only be getting more and more complicated in the months to come.

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That is a good purchase decision. Make it easier and it takes care of filtering the noise too.

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Originally Posted by xintersecty

That is a good purchase decision. Make it easier and it takes care of filtering the noise too.

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Surprisingly enough, there is actually no noise. I just made sure my ground connection was good from my amp to chassis and bam!