2004 Grand Caravan sxt radio
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O.K. through some long searches on the net..it turns out my '04 grand caravan sxt has a 2005 stereo system.Each of the front four speakers has it's own amp. and back speakers are powered by one in the back of the van. There is a relay for the sound system in the fuse box under the hood. I changed the relay and voila...I got sound..problem solved