Hi all. I have installed a pioneer 9800bt head unit and pulled out my Bose Head unit. I'm using the RCA preouts at 5 volts and just added RCA plug onto the wiring harness that run to the POS Bose amp. it sound great on low volumes but when i turn it up it distorts and sounds like **** because i am sending a low signal when i should be sending a high one. If I add 2 line converters and take the RCA level signal and put it back into the high speaker level would that solve the problem?