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Please help F90BT has no sound


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i dont think there's anything wrong with my blutooth so i dont see that being an issue. im going to un solder the harness and start all over with the wiring and maybe i did miss something somewhere. i have no bose. and no onstar. when the unit is powering up when i turn the key the speakers crackle a tiny bit then ..nothing.

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speakers worked fine with the stock unit, so maybe the unit is shot? i went to a local audio shop today and they said they'll go over it on monday and double check my wiring for $20 so im going to have them do that and either way i still have the rga coming to exchange the unit.

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lol ya i was going to i just didnt have time earlier i was too excited. ok so on the gmrc-01 there's a red wire that says 12v power and i looked up online when i was installing it and the info said that went to a 12v switched ignition so i tapped that into the switched power in the factory harness and then hooked up the red acc wire from the unit to that wire. and that was my problem because i remember having sound at one point so i un did that and just soldered the two red wires from the gmrc-01 and the red acc wire together and wouldn't you know that it works perfectly :D . it was just way more simple than i wanted it to be haha guess when i was doing it the first time i over thought it just a little too much.

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lol ya i was going to i just didnt have time earlier i was too excited. ok so on the gmrc-01 there's a red wire that says 12v power and i looked up online when i was installing it and the info said that went to a 12v switched ignition so i tapped that into the switched power in the factory harness and then hooked up the red acc wire from the unit to that wire. and that was my problem because i remember having sound at one point so i un did that and just soldered the two red wires from the gmrc-01 and the red acc wire together and wouldn't you know that it works perfectly :D . it was just way more simple than i wanted it to be haha guess when i was doing it the first time i over thought it just a little too much.

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no i used the wire harness but um idk how to explain. on the gm interface for the dinger there're 4 wires and one of them is red and it wasnt attached to anything the other 3 where connected into the female end of the harness that goes to the factory wiring so i figured with it being red that it had to go to a power source so i tapped it into the switched power on the factory wiring. where it should have just gone to the red acc from the pioneer.

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