I screwed up

Hello,

I bought a Profile AP740 Car Audio Amplifier and could not get it to
turn on. I had 12.7VDC reading between the power and ground wires (8
G), and I had 0.1 ohms of resistance between the ground point and any
bare chassis around it.

I could not get it to turn on, even after trying to bypass the remote
turn-on lead by putting a little 16G wire between the B+ terminal and
REM terminal to bypass the head unit's turn-on thing. It still would
not turn on.

Well, I screwed up bad. After all of this and a lot of frustration, I
disconnected the amp and inspected it and all that stuff. I started to
put the wires back into it and I put the ground in the B+ terminal and
without realizing this, I put the Power cable in the Ground terminal.
It made a spark and I pulled the power/ground cables out realizing
what I had just done.

Is the amp fried now? Any hope of it working again? What exactly did I
do to it? I wonder if the amp was even working in the first place
because it wouldn't freaking turn on!!

Thanks for your time

.

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