Audiovox MM850 manual Trim Ring Installation

Installation Guide

TRIM RING INSTALLATION:

This page only covers special installation considerations for the trim ring installation.

If the video monitor is to be installed in a vehicle with the trim ring, it may need to be trimmed to fit the contour of the vehicle headliner.

1)In this installation, the video monitor is mounted directly to the overhead cross-member in the roof using the mounting screw bosses. These screw bosses should contact the cross-member di- rectly (i.e.: no gap between the screw boss and the roof structure). Also, be sure that the screws do not pierce the outer roof skin when fully fastened to the cross-member. The trim ring is attached to the video monitor using the perimeter screw bosses. It is important that the screws used in this installation are not overtightened, and that the video monitor and trim ring are mounted in such a way that the assembly does not distort (or bend) when the mounting screws are tight- ened. An alternate method is to use a piece of plywood (5"x9"x3/4"). First secure the plywood block to the cross-member, then screw the monitor into the plywood. See the drawing on page 7.

2)It is best to mount the video monitor to the roof structure without the trim ring first. There should be a gap between the headliner and the outer flange of the video monitor. The trim ring should be cut to full this gap. Apply masking tape to the outer surface of the trim ring in the areas where the cut will be made.

3)Mark the cut to follow the necessary contour of the roof. The suggested method of marking is as follows:

A)First mark the narrowest point of the trim ring on the masking tape. Be careful to consider not only left-right location, but fore-aft location.

B)Using the handle of a screwdriver, make a “transfer marking tool”. See diagram below. Place the tool against the roof and the marker against the masking tape on the mini-console. Trace the cut to be made around the entire perimeter of the trim ring.

C)Cut the trim ring using a Dremel Tool.

D)Check the fit of the trim ring and make any minor adjustments necessary.

4)The trim ring can be painted or covered with a material that matches the headliner before assem- bling the trim ring to the video monitor.

5)The finished trim ring should be attached to the video monitor, then attach the assembly to the roof.

Headliner

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Figure 6

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