hi! i've just bought a denon dp 29f record player and already have a pair of bose companion 2 series iii speakers - the record player has a line out with one red lead and one white lead (masculine) but the speakers only have ports for aux or computer in (not coloured) does anyone know if i need to buy an amp to connect the record player to the speakers or is there just an adaptor cable i could get to connect them?