Here's my issue...I have a Pioneer headunit in my car with the rest of the audio system being the OEM Bose. 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 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 looked for a right-up on this, but have been unsuccessful in finding one.

 

Do you have a PAC-OEM adapter installed?

 

Yeah if you have the adapter the gain controls on the adapter can be turned up and this will make a huge difference.

 

What wire harness are you using?
You could also try the Metra 70-7551.

 

if you want to bypass the bose, then i assume you mean you want to bypass the bose factory amplifier. get a 9 wire and then buy a 4 channel amplifier. take out the factory speaker wires out of the bose amp, (located in trunk under rear deck) attach to 9 wire (or not. your choice) and run into 4 channel amp. or you could do that with you're pioneer headunit amp instead of getting an external 4 channel.

basically what im saying is take the factory speaker wires out of the factory bose amp, and run them to some other kind of power source - like your pioneer headunit (internal amp) or a 4 channel

 

Sounds like a real ***** to do. Yeah, I'm not really sure which wiring harness I'm using.

 

Also, what is this PAC adapter thing, and how does it work?

 

you can use something like this, but your headunite needs to have 4volt RCa outputs or the volume will be low:
http://www.sonicelectronix.com/item_...mpaign=froogle

Or, like the guys mentioned, get one of these and set the gains:
http://www.sonicelectronix.com/item_...AOEM-NIS2.html

 

or u could just get new speakers install them and run new wires and power them off the HU, leave all the old wiring there and switch it back to bose when u get a new car or upgrade