Simple As A-Pillar Can Get! - How To

Start by removing the A-pillars and strip away the factory lining (if applicable). Scuff off any glue from the surface using 100-grit sandpaper and sand the back side edges of the plastic to help promote good adhesion when attaching the material in later steps.

Cut a mounting plate out of 11/44" MDF and pre-drilled holes for tweeter to mount. Cut a 31/44" wide strip of Formica laminate long enough to border the circumference of the mounting plate. Using superglue, secure the laminate strip to the plate keeping it flush with the bottom edge. A Masonite grille cap is optional if you don't want to expose the entire tweeter casing.

Here is the grille cap. Since this is a cosmetic piece, play close attention to your finish work. Assemble all the pieces to verify fitment. Now they are ready to go on the A-pillar.

Next, place the A-pillar back into the vehicle. Glue two tabs made of 11/48" MDF to the backside of the assembly. With 0.5" screws, secure the tabs to the pillar. Since positioning of tweeters is important for staging and imaging, we recommend testing the tweeters and adjusting them before final glue and screws are set in place.

Since the Genesis tweeters utilize a rear chamber, a hole was cut in the pillar to minimize the height of the protruding tweeter mount.

Here's a final view of the placement before pillar shape is formed.

To shape our mount, stretch grille cloth around the entire pillar using upholstery glue to adhere it to the backside edges we sanded earlier. Next, apply enough superglue to the outer edge of the tweeter mount trim ring to soak through the grille cloth. Once dried, mix and brush on two coats of resin. Apply the resin to the outer edge of the trim ring only and not the entire grille. Once this has cured, apply a light coat of Rage Gold body filler. Sand the pillars smooth using a block sander while paying close attention to the edge of the trim ring to ensure a flat surface. With a razor blade, cut out the small portion of grille material left inside the trim ring.

With the A-pillars sanded smooth, its now time to cover them with material. For this we used a matching headliner material from Veteran Company Materials for factory look.

Headliner material is a very elastic fabric and doesn't need to be overstretched like grille material. Spray on professional upholstery glue (contact cement) to both the material and pillar and let dry to a tacky (not wet) state prior to attaching both pieces for best adhesion.

Here's the finished product installed in the vehicle that also includes the optional tweeter grille.