Dash Speaker with Vintage Air

[ItDoRun]

Anybody know what dash speaker will work with a Vintage Air GenIV system in a 68 Camaro? I bought one from Classic Auto but with the factory vent installed it leaves no room to hook up the a/c duct. Called them and they said it's only for a factory a/c car. Anyone have any suggestions on what works, if anything?

[67rsssls]

I mounted two 3 1/2" JL Audio's in my 67 Camaro. They clear my Vintage Air perfectly. I bought a small piece of 1/8" aluminum plate and some aluminum angle online and fabricated a mount.