Do you have an external amp? Give me more info on stereo going in, and what it does do.
SOURCE: After installing the alpine cde 9870 car stereo
In this situation 8 times out of 10 the problem is not with the radio, it's that there are factory amplifiers. Many cars have them, and most require a little work, or an adapter to get going. Tell me the year, make, and model of the car, and perhaps I can give you more info.
SOURCE: AM FM CD DET FACE CAR STEREO: installed an alpine stereo in my mustang and every...
That's because the memory wire has not been connected to a permanent live supply.
There will be an ignition switched 12v supply and a memory wire. The first is yellow on many brands and the second is red, but you need to refer to your fitting manual to check or look directly at the wiring harness as the wires are often individually labelled.
Since they both take 12v some folks mistakenly think that they can just be piggy-backed to each other and feed from the same supply. They can, but only if it's to a permanent live feed but that then leaves the risk of the unit being left switched on when the car is parked and draining the battery.
Its trouble is in inside
If you had a "Bose" sound system - Factory installed - it should have and Amplified System - which means the original stereo will supply power to the Speaker Amps - that is the circuit that didn't get connected and why there is no sound.
I hope that resolves your issue
Thanks
Testimonial: "Is there a different wiring harness to buy? did i just miss a wire, or do i need to bypass the factory amp?"
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