Question about Sony CDX-2250 CD Changer
It's very likely that you have a factory amplifier in the vehicle that needs to be either turned on or (preferably) bypassed to get sound to the speakers. If your vehicle is a Mustang, it's almost certain that you have a factory amp. If the factory plug includes a long, 8-pin gray plug and a small, square 8-pin plug connected to a round cable, then the amp turn-on wire is at the opposite end of the gray plug from the constant power wire. This needs to be connected to the blue/white wire on the Sony head unit for the factory amp to turn on. Otherwise, if you dig into the radio cavity a little bit, you'll find a black 8-pin connector that looks very similar to the gray connector at the back of the radio. The black connector pins are connected directly to the speakers, bypassing the factory amp.
Posted on Mar 15, 2007
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