Installation Instructions for 89504
Fully Automatic AM/FM Power Antenna
Includes 6 Mounting Bases
This antenna is designed for optimum performance for either AM or FM bands. The antenna is raised or lowered by
operating the radio on/off switch.
Prior to installing the antenna, read the entire installation instructions.
May require an extension cable depending on vehicle or an antenna adapter cable for many 1995-up Ford, 1988-up
GM and some imports.
1. REPLACEMENT OF EXISTING POWER ANTENNA, REMOVING OLD ANTENNA.
A) Gain access to the underside of the fender area through the trunk, fender splash panel, etc.
B) Remove mounting bracket, drain tube, electrical wire and antenna coaxial cable. When removing electrical wires and
coaxial cable from the antenna, follow to the closest connector and disconnect.
DO NOT CUT COAXIAL CABLE.
C) Disassemble the mounting base and save the parts, they may be used with the installation of the new antenna.
D) Remove old antenna from below fender.
E) To avoid cutting car wiring, you may want to cut the connector off of the old antenna removed from the car, attaching
the new antenna wiring to the old connector wires and directly plug into car wiring.
2. NEW ANTENNA INSTALLATION:
For first time antenna installations:
A) Use original factory hole or select a location on the front or back fender of car for mounting antenna. In selecting the
location, make sure the underside of the fender is free of any obstruction such as weld beads, braces, gussets and sub-
fender. Also, be sure that sufficient clearance is available under fender to house the antenna, approximately 11-
1/2” /
29cm.
B) Six mounting bases are provided with the antenna. Five fixed angle and one adjustable angle flush mount base.
(See Figure 1).
C) Remove the installed flush mounting base from new antenna. Select the proper base with correct angle for fender
(as shown in figure 1) or reuse original mounting base previously removed from old antenna. NOTE: The five fixed
angle bases require a 7/8” /22mm hole. The adjustable angle flush base requires a 1” 25mm hole.
D) A 1/8” / 3mm pilot hole should be drilled, then enlarged with a hole saw or drill bit to the proper size.
E) Remove all burrs, paint, road dirt or undercoating from around the underside of the hole.
F) Install the antenna from the underside of the fender and assemble the base above the fender according to
Figure 1
.
BE SURE THE RETAINER RESTS EVENLY ON THE UNDERSIDE OF THE FENDER TO ALLEVIATE ANY
POSSIBLE DAMAGE TO THE VEHICLE. Align the mast vertically by slightly tightening the antenna mounting nut while
adjusting the mast to be vertical.
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