Need help with a amp and what can be used on my motorcycle faring
 

I have a custom VTX with a modified Street glide faring with 2 outer 61/2 speakers and 2 4" speakers where the speedo and tach were.
I have a PYLE marine amp ( supposidly 400 watts) ( doubt that for real) but i had to cut out the radio section of the faring to make a better lean of the faring.
Ok i currently use a MP3 player that plugs into a port on the faring which connnects to the amp and then to a volume wired control know to adjust volume when riding rather then trying t play with the volume on the mp3 player itself.
I just cant get enough power to push the speakers and want a better amp but it has to be able to work off of a MP3 player or cell phone speaker out put plug and i would like to still be able to use the volume control which operates the volume straight from the amp.

Is this even still possible with another amp set up rather then the Pyle i currently have?

All help is appreciated as the bike is really set up clean and I just need the sound to kick *** to match the rest of the bike.

here is more info about my bike. Bareass Choppers Motorcycle Tech Pages ( scroll down to the red bike with the faring and theres 2 pages of infor about what i have.
this is the complete lay out of what was done. I just need a amp that will fit in the faring andf that a mp3 player can plug into to play the music. But want to keep the volume control knob from the pyle amp to use for volume. ( or something simular)
any help is greatly appreciated.


Thanks for any assistance.
TASSY5

WETSOUNDS makes a Marine grade amplifier called a SYN Micro (75 Watts x 2 RMS - REAL POWER)

Should have plenty of power for the 4 speakers, even though it's only a 2 channel amp.

Bazooka makes a Marine grade 4 channel amplifier - MA475DB (75 Watts x 4 RMS Power).

Both amps are small enough to sit on top of the factory head unit, and efficient enough, not to starve your charging system

i will look into them but read my post above, I have No head unit. the amp must work purly from the mp3 player or phone