looking to upgrade my Non-Bose Symphony to Bose Symphony.
#3
Honestly Todd... it's not worth the trouble.
The Bose system is somewhat decent for factory sound; but, a nice set of components in the front, some decent rear fillers, and a good amp will sound a heck of a lot better than the Bose system. If you really want it to sound good, you might want to also add a sub, but you might want to keep the trunk space.