What is the specifications on the BOSE System on a 1997 3.0 CL?

[speedjunkie]

Does anyone know the specifications on the Bose Audio system?
Like the Power Output on the Head Unit? Any RCA outputs on the back of the Head Unit?
I just ordered myself a 150Watt Powered Bazooka 10" Tube to
increase my bass in the car but now I'm thinking that I will need to increase the volume on my front and rear speakers and was thinking of just swapping out the HEad Unit with one
of the Kenwood Excelon Units......but i read somewhere that the OEM Bose Head Unit pumps out 25watts RMS power to the speakers, to buying a KEnwood Unit will not really improve?

I dont want to buy an amp and deal with changing out my bose speakers, im on a tight budget...

Any suggestions ? Ideas?

Thanks,