User manual AUDIOVOX 1286825

[. . . ] This is not true for high-frequency sounds which will be absorbed by the roof liner long before they reach your ears. 2: High and mid-frequency sounds are very directional (the higher the frequency, the more directional it is). This simply means that a tweeter or mid-range speaker pointing toward the floor (or roof) will only be clearly heard in the direction at which it is pointed. For this reason, it is critical that tweeters and mid-range speakers always be installed so they aim in toward the passenger area and as high in the car as possible (on top of dash or high up in door panels). [. . . ] When only two are provided, one is usually in the rear deck and the other is in the front dash. Provisions for four speakers usually include two rear deck openings and two door or dash openings. A car manufacturer picks speaker locations that simplify installation and fit available spaces. They are not always the best places for sound reproduction. Using Factory Openings - The one advantage to using the factory openings is you avoid having cut sheet metal, as the holes are prepunched. You normally have only to cut away thin plastic or fiber panels that conceal the openings. Openings near the floor should be avoided if at all possible. 128-6825 4 of 10 If necessary, remove the door opening handle any accessory. Unless screws are holding the door panel to the door frame, which is very rare, you will find that most door panels are secured by spring clips. Using a broad flat tool between door and door panel, unfasten spring clips. If a few clips are bent when removing them, a pair of pliers will easily re-form them. Once all clips are unfastened, lift off door panel. NOTE:On cars equipped with power windows, seats, etc. , it may be necessary to free the power switch plate, usually mounted to the driver's side arm rest, in order to fully separate the door panel from the frame. 6. Clip pins Selecting Speaker Location After removing the door panel, you are ready to select a location for the speaker. When the steel sub-door panel is exposed, you may find the panel completely or partially covered by brown or black paper secured with a sticky-black, tar-like adhesive. It is there to insulate the door, to trap moisture, and to reduce wind noise. (Do not do this if speaker openings are exposed. ) You should now be able to see all the varied size openings available in the sub-steel door. The reason for exposing all the existing holes is to avoid cutting metal unless it is absolutely necessary. Now determine which existing holes will accommodate your speakers. Temporarily install the window crank; place the speaker into the opening and, while holding the speaker in place, fully raise and lower the window. Check that no moving part touches the speaker while opening or closing the window. Then open and close the door and inspect for speaker interference. Removing the Door Panel 1. This opening would have to be enlarged per dotted line 2. [. . . ] DO NOT tape wires to hinges or braces. 3. Place speaker into door and secure using screws (and clips, if necessary) provided with speaker. Then install grille (grille snaps over outer ring of speaker frame). Repeat for remaining door. 4 3 2 1 Routing Speaker Wires 1. [. . . ]