You are going to need some sort of DSP if you are going to tap the Bose amp speaker outs...each speaker out is crossed over at the amp...the Bose amp changes the speaker outputs once you start getting above 55-60% volume on the radio. You have to use a DSP to combine all the appropriate outputs and flatten out the range. I ended up going with a Rockford 3 Sixty.3 for my system as it also has a 1/3 octave eq built in. It also has a remote volume level so i can run the system turned down most of the time and just turn up when i need it. Running at full volume on the RF unit...the turn signal , backup warning and chimes are way too loud...
Really wish the NAV-TV’s M650-GM processor was available when i did my system. Would have made things a little easier than keeping Bose amp...
this is my install...spent about $4500 installed...
http://www.camaro6.com/forums/showthread.php?t=497975