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Originally Posted by metsownyou
It's not an older model though is it? It's an 05.. Does every door have an amp in it? It's only the front left speakers that go out and buzz.
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No, it's not an older model, obviously. I was simply illustrating the problems seen with the Bose units in the past.
As far as I know, ALL bose units put the amps in each door, right next to the speaker.
The problem you're describing is EXACTLY the problem you run into when the Bose amps go bad. they buzz and whine and pop from that particular speaker.
And if they've already replaced the head unit (generally it will have a problem with all speakers, or simply a channel not working instead of noise in one), and the speakers (they won't create a noise.. they only convert the electrical signal to mechanical motion via a coil and magnet. the motion is what makes the air vibrate and causes the sounds you hear).. Thus, a speaker CAN'T make extra noises like that. this is aside from a failure of a speaker with a rubbing voice coil, hole in the surround, or other mechanical problem that creates other noises..... but even then, those noises are only present when the speaker is actually driven, and it usually takes quite a bit of volume to see that stuff.
a constant whining like this is definitely electrical. so that leaves the amps, head unit, and wiring.
If the head unit was replaced, then that leaves the wiring and amp as culprits. the amp is the next easiest thing to replace, so that would have been my second choice. (actually, it would have been my first, but we're picking nits here....)
if it's not the head unit and it's not the amp, then it's going to be faulty wiring... and you just don't have faulty wiring in these cars like you did in the '60s.
The easiest and quickest thing to do is for the dealership to park your car next to another one on the lot (preferably a demo model or a trade-in and not a brand new one), then rip the door panels off and swap amps in the door. this is 20-30 minutes of work and easily doable by any grease monkey with a set of screwdrivers.
If that fixes it, then have the dealer simply order a new unit to go in yours, or keep the 'new' used one in your car and order a new one for the car on the lot.
some mechanics just can't figure out that parts are interchangeable between cars on the lot and it saves a TON of time and hassle troubleshooting.
