So I recently bought My Roadster and I didn't like the sound of the stereo and I figured it's because it didn't have this mod such as I had done in my Coupe years ago from the information in this thread

So when I went to install my capacitors I found these in there already.
The previous owner had put them in.
The ones in there are the ones in black shown here which are 330 UF 100 V
The ones I installed are the small blue ones which are 220 UF 25 V and it sounds much better
So what are the differences between all these ?
I still don't understand other than the final sound that comes from the speakers.
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