 It's time to insert a mounting...  It's time to insert a mounting ring into the fiberglass for our MB Quart speaker. |  With a jigsaw, cut off the...  With a jigsaw, cut off the excess material around the rings, leaving 1/8" of material behind. |  Attach the template using...  Attach the template using double-sided tape to your second ring. |
 Using a rabbet bit, remove...  Using a rabbet bit, remove enough material so that the speaker sits flush to the top of the ring. |  Apply Duraglas around the...  Apply Duraglas around the speaker ring, bonding it permanently to your fiberglass insert. |  To hide the mounting screws...  To hide the mounting screws of the speaker, I've made a 1/4" aluminum ring that trims around the cone of the speaker. |
 Clamp the aluminum to a tabletop....  Clamp the aluminum to a tabletop. Use a jig saw with a metal carbide blade to cut off the excess material, leaving 1/8" behind. |  Using a carbide router bit,...  Using a carbide router bit, flush trim the excess of the aluminum off. |  With the template still attached,...  With the template still attached, use a chamfer bit to give a finished look to the ring. |
 Surround the aluminum ring...  Surround the aluminum ring with three layers of masking tape, leaving a perfect gap for additional primer and paint. |  Apply Duraglas and Rage Gold...  Apply Duraglas and Rage Gold body fillers around the aluminum ring, molding into the insert. |  Leaving the ring in place,...  Leaving the ring in place, hand sand the surface with 40-grit sandpaper until the desired shape is revealed. |
 Drill and recess bolts into...  Drill and recess bolts into the inserts that will later get filled. |  Mold the inserts into the...  Mold the inserts into the factory plastic door panel. |  Tape off the tops of the inserts...  Tape off the tops of the inserts and apply Duraglas around them until the desired shape is acquired. |
 Now remove the masking tape....  Now remove the masking tape. With an angle grinder, shape the Duraglas with inserts in place to blend the new shapes into the door. |  To further blend your new...  To further blend your new shapes, apply Rage Gold body filler. |  With guide coat sanded and...  With guide coat sanded and inserts put back in place, it's clear that the shapes blend perfectly to the factory door panel. |
 Polyester primer is applied...  Polyester primer is applied over the whole door panel to seal all bodywork along with creating a uniform surface. |  With upholstery complete,...  With upholstery complete, it's time to get the fiberglass inserts ready for paint. |  Apply three medium wet coats...  Apply three medium wet coats of polyester primer. |
 While the primer is drying,...  While the primer is drying, sand the aluminum ring to prepare for the polishing process. |  Apply blue compound to the...  Apply blue compound to the buffing wheel and buff the aluminum until you get a chrome-like finish. |  Guide coat the primered inserts...  Guide coat the primered inserts and block sand with 220-grit sandpaper. |
 I've chosen a silver color,...  I've chosen a silver color, so I'll apply three coats of base and three coats of clear. |  These two shots show a simple...  These two shots show a simple but clean door panel that can be accomplished in about three days of work. |  |