My 66 Charger has a blown dash speaker. It also has factory air so access from under the dash is not good. I talked to a buddy with a 66 Belvedere yesterday, who just installed a retrosound speaker and really liked it. He had to pull the instrument cluster to get his in, but his speaker is centered in the dash. When looking at the Charger we noticed the speaker is offset to the passenger side. It almost looks like you could get at the bolts and remove it through the glovebox. Has anyone tried this?