These Custom Autosound Kick Panels with Speaker Openings will fit any 1967-1968 Mustang.
If you want to add a few more speakers to your 1967-1968 Mustang easily, these Kick Panels from Custom Autosound contain 6 1/2 inch Speaker Openings to allow you to install two extra speakers without having to cut into the interior of your Mustang. They come in black, but can be dyed to match any interior color.
2. The displacement on the speaker holes on these kick panels was pretty shallow for typical Mustang 6.5 inch speakers so I used inexpensive 1 inch standoffs for installation of my speakers.
3. I also used a Mustang Dynamat Xtreme Speaker Kit on the backside of my kick panels to make the plastic more rigid. This will lessen the flex and stop unwanted noise or buzzing.
4. Now that the new kick panels are prepped with the new speakers and Dynamat, remove the original Mustang kick panels. To do so, remove the door sills by removing all nine Phillips head screws on each side. The original kick panels are held in place with two Phillips head screws. Remove them. There is a curved lip along the door's opening edge, so you have to pull the panels towards the back of the car to release them.
5. For additional help with cabin temperature and road noise, Mustang kick panel insulation was installed using Mustang spray adhesive to attach it to the kick panel.
6. The insulation comes with a perforated opening for the speaker wire. Run it through the opening and connect it to your sound system. Once they're connected, test the Mustang speakers before you finish installing the kick panels.
7. To install the kick panel, I simply pressed it in place over the door opening lip. I don’t plan on using additional installation screws because it is a tight fit, and the kick panels did not come with pre-drilled holes for any mounting screws. However, if I notice the kick panels flexing as time passes, I will install self-tapping screws.