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Subwoofer Rings

December 1st, 2009 admin

How to wire a subwoofer to a alpine cda-9856?

The alpine cda-9856 was already installed in the car when I bought it. I have looked at the back and there are two wire plugged into the subwoofer plugins the bottom two. These wire wrap around the car to the back where these two auxilary like plugs are with a metal ring connected to a separate wire and what looks like a eathernet plug. I have a sub from a home stereo so it has two wires with only the copper strands hanging out. How do I connect them? Please help

A sub from home stereo? Hmmmmm.
Ideally, for a subwoofer you would want it amplified. The cda-9856 has 2 sets of rca outputs. These are connectors that look like the picture on the right here:
http://en.wikipedia.org/wiki/RCA_connector

These would be plugged into an amplifier. There should be a blue wire on the back of the Alpine that turns the amp on. Then the wires from/to your sub would be connected to the amp. If it is a 2 channel sub, then you would connect right pos to right pos and right neg to right neg and left etc......
However, if it is asingle channel sub, then you would have to find out how the amp needs to be hooked up for bridging mode. This is usually done by flipping a switch on the amp itself and connecting pos from the amp to right pos and neg to left neg on the amp.

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