Here's my issue...I have a 2002 Nissan Maxima GLE. I have a Pioneer headunit with the rest of the audio system being the OEM/factory BOSE (ie; speakers, amp, sub). My problem is that I can turn the volume up to about ten, with the volume increasing, but after that only the numbers will increase and not the volume. I was told that the issue is the BOSE system itself and the easiest fix is to completely bypass the Bose system...is this the case? If so, could someone maybe point me in the right direction. I have had some suggestions regarding different harnesses. I also don't consider myself a guru in this dept. either. I have looked for a right-up on this, but have been unsuccessful in finding one.
My guess is that your hooked up speaker level to the Bose amps. In other words, your not using a Bose Line Level adapter. Thats the only reason I can think of that you volume would max out so fast. My method for bypassing the Bose includes replacing all the speakers. Then run wires from each speaker to your radio. Consider an adapter like the PAC-Audio ROEM-NIS2, if you wanna keep the Bose System