Installed the F700 this last weekend. Had a few issues including the fact that the PRESWIPS is a piece of junk. BUT the larger issue is the volume for phone call and the system itself. It's almost inaudible.
Everything else works - I get left and right channels, front and rear. It ain't loud but its the stock Bose speaker set-up in an 08 Corvette. Onstar is clear as a bell. The only thing that is wimpy is the BT phone connection and the system sound. To the point that I didn't realize the Nav was even giving directions.
I've set master volume and everything I can find to full gain. Boosted EQ.
Any other ideas? I've been through the search and don't find anything on nav volume or system volume.