Subwoofer Upgrade to Bose Touring Stereo

Micas

Did some more reading on these. Does the stock Bose head unit have a 5 channel output, or just 4?

It seems the proper way to set this up is to plug the head unit into the Re-Q, with the sub output going to the sub amp, the 4 line level then into the clean sweep, and the output of that to the speaker amp. Right?

It would be nice if the clean sweep also provided the function of the Re-Q, creating a proper sub signal.

Also, is there going to be a big drop off in sound quality by using the head unit volume control, rather than the clean sweep master volume control? One of the reasons for keeping the stock head unit is to have all the controls and such work like stock. I was hoping to get a Z with the touring options and NAV, hard drive and so on.