relias

Hello all, does anyone know if my 2001 bugeye has a amplifier for the radio that is separate to the radio itself, I have hardly anything coming out of the right front and rear speakers was working fine until not used for 4 months and fitting new battery. If it has where is it located and is it fused. Have checked all the obvious balance fader etc, like I say was working just fine before not being used. Next question is anyone know of radio cassette cd player for sale sensible money?