FYI, I have a modest Soundstream 4+1 channel P205 amp that I pulled off my boat that I would sell for cheap. You can find an owner's manual here . It's a bit of an odd shape (about 16x6x2") so it may not fit your install and it may be expensive to UPS it cross-country. Plus, one of the RCA ground jackets pulled loose when I unplugged the patch cord, so I don't get the sense that it's designed all that well....but it's just taking up space on my shelf, so I'd sell it for $40 + shipping. It did work just fine on the boat, FWIW. It just consumed too many amps so I decided to run directly off my head unit.