So on with the modification details. It cost me nothing other than labour as I had all the materials scattered in the parts box or elsewhere at home. There are mainly 2 assemblies:
1. The T-hook anchors
2. Simple mod to the rear of the OEM license plate folder (A171 885 09 81).
1. Powered drill, 1.6 or 2 mm drill bits (new and sharp), and other assorted drill bits
2. Motor-Tool (with cutting attachment) to cut pins and shorten screws
3. Sharp blade or heated hobby knife to cut dense foam
4. Pin vise to hold drill bit for the initial guide hole before using powered drill
5. Protective eye-wear
6. Mini table vise, to hold pins and screws while working with motor tool to cut or shorten
7. A punch to make holes in dense foam material, I happen to have 6mm punch biopsy tool
A. Making the T-hook anchors
This is the important piece as it allows one to attach the OEM front license plate holder to the lower grille without having to drill holes on the bumper cover.
1. a pair of M4x27mm female panel connecting sleeve with its associated male machine-screw (this is used by modular cabinet makers to attach Euro style pre-fab garage storage cabinets <with 5mm series of pre-drilled holes> side-to-side, check the net for sellers of these parts, I gather the local hardware store may have them, I happen to have a pair in the parts box)
2. Wire, to make pins, about 1.6mm or 2 mm in diameter (correpsonds to one's smaller drill bits)
3. common household rubber faucet washer, one pair
1. Unscrew the associated male machine-screw from the M4x27mm female panel connecting sleeve
2. With the drill bit (I used the 1.6mm) firmly locked in the pin-vise, drill a starter hole or depression at the non-threaded end of the panel sleeve
3. Finish making a hole through the panel sleeve with a powered drill, taking great care (drill bit has to be new and sharp to make drilling easier) as the bits are sharp (wear protective eyewear) and make certain the hole is perpendicular to long axis and cuts through the center
4. Cut two 16mm-long wire pins of the corresponding diameter as the drill bit used using motor tool and a mini-vise
5. Insert the 16mm pins through the holes made on the panel sleeve (one for each panel sleeve) and secure with 5-minute epoxy
6. Insert household faucet washer at the threaded end of the panel sleeve, this is your T-hook anchor assembly
B. Simple mod to back of OEM license plate holder
1. Dense foam material
2. Double sided tape
1. Cut two pieces of dense foam material to the following dimensions 8cm(wide) x 13cm(long) x 2.5 cm (thick)
2. Place one piece against the back side of the OEM license plate towards the right and another piece towards the left side. Mark the foam from the front using the pre-sunk hole (the one closer to the center) on the license plate holder with a suitable contrasting color marker.
3. Remove the two dense foam from license plate holder and punch a 5 or 6mm hole in each. The technique I use is to flatten the foam with a heavy metal plate that has a hole in the center. The hole in the metal plate is aligned with the mark made. I then use the punch biopsy and twist through the foam to make a nice sharp-bordered opening
4. Attach the foam to the back side of the license plate holder with double-sided tape. Make sure to align the hole just punched to the hole on the license plate holder (the one towards the center)
5. Place license plate unto the face of the license plate holder and mark the 4 holes. Pre-drill the four holes to a diameter smaller than the self-tapping screws that will be used to mount the license plate.
6. Pre-tap the 4 mounting holes with the mounting screws. Shorten the license plate mounting screws to about 10mm. You want these only long enough to hold the license plate securely but not scratch the bumper cover when mounted.