Well, see, that's the thing...

There's no gain on the amp. My thought is that it takes speaker level imputs, and the HU is only sending line levels. I mean it's "loud" but certainly not as loud as the original head unit was.

I took the amp out, but haven't taken it apart. There may be a pot on the inside to control gain, but my bet is it's a standard Chrysler part. I was thinking I might need some sort of line --> speaker level converter of some sort.

Thanks for the Reply! I really appreciate it...