Hi GCG. Michael here. I have an '03 C5 Z06 with the stock Bose set up. I want to keep the factory HU and Bose subs in the doors, but looking to replace the four twiddlers. The GX328 and GX528 are my targets. Two questions: 1) it would seem that there might already be OEM crossovers filtering the stock twiddlers, so I am thinking I can just use these OEM crossovers with my JBL GXs? and 2), I see no clearance issues mentioned anywhere on either of these JBL speakers... have you seen anything?

Thanks in advance!

I removed the 2 connector screws and got the cover off. Can't seem to find the white lever you referred to. I can send you a photo if you can share your email address. Mine is belair1956@comcast.net.

thx
Jerry