Is the radio a BOSE? If it is, it won't work...the Bose system doesn't have an amp in the radio, each speaker had its on amp. If it's not a Bose....maybe you wired it wrong...could have crossed the wires too (negative to positive and vice versa).KA27DB wrote:I installed a new s14 OEM radio and the volume is always stuck really low. Can barely get loud enough to hear even when turned all the way up. Anyone know what the problem could be?