9/20/2011

Metra Universal Power Antenna (44-PW22) (44-PW22) Review

Metra Universal Power Antenna (44-PW22) (44-PW22)
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I replace the stock antenna in a Volvo 850 with this antenna, because new, it is priced lower than a used OEM part.
It took only some minor hassle to make it fit, and I ended up drilling a larger hole in the original external nut to make it look as much as possible like it belonged there. Volvo has the antenna in the back, so access to the work was really easy.
Wiring was easy, and obvious. The black wire goes to ground, the red wire goes to constant power and the blue wire is the switched lead for raising the antenna. The antenna signal wire is quite long, and terminates with the standard automotive antenna connector (male).
In case you are curious about upgrading your fixed mast for this unit, here is how it works: the unit is always powered on (via the red wire) and internal circuits respond to voltage on the blue wire. When there is constant voltage on the blue wire, the motor raises the antenna, automatically stops. When the voltage is removed from the blue wire, the motor lowers the antenna and automatically stops. Constant power is required on the red wire so the antenna will lower after you turn off the car.
Tip: even if your radio has the blue power antenna lead in its harness, you may still desire a dedicated switch, so you can lower the antenna when going through a car wash, otherwise, you will have to turn off your radio. I was put the manual switch in series with the radio's antenna lead, allowing the switch to override only when you desire.

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