I have a bose system in my 89 maxima. When I got the car it had a kenwood kdc-216s in there and the speakers were making this loud whining noise, I assume because I did not have a line adapter (I think that is what it is called), I then bypassed the amps on them and the noise went away of course. I have also changed to a jvc kameleon head unit that I had lying around.

But now I want the superior sound quality that went along with the bose amps so I have 2 questions:

1. I am planning to get a 1995 maxima radio and put it in my 89 maxima I will get a reverse harness to make it fit. So will that be compatible with my 89 maxima speaker system?

2. If I get the radio and put it in and it is compatible will it remove the whining noise? or are the amps in the speaker completely blown

thanks in advance for ur help!

 

Ditch the blowse dude....They are not worth messing with...i know from experience..

Hit up ebay for aftermarket amp and speakers and be done with it...

Oh...Welcome to the org.

 

but man I love the way they sound lol the one speaker that still sounds nice sounds great and it is 16 years old lol. And another thing is that I do not want to have to search for a speaker that will fit in the place of the front speakers.

and thanks for the welcom hehe

 

Here is a kink to craig brace's webpage....http://www.geocities.com/craigbrace/

Click the HOW TO section...scroll down to the replacing front and rear speaker part....very useful info in there....

 

yeah I have seen that before I will have to see which comes out cheaper and due to my natural laziness I do not really want to make some custom stuff to make the speakers fit and I do not want to spend all that time installing an amp. seems to me that the quickest option would be to just put in a maxima radio

 

keep the bose man. They make the best sound systems. Does the noise seem to follow the speed of the engine? If so you have a bad ground.

 

You problem is your amps are blown....So putting in another radio isn't going to fix the problem....

You can check the parts for sale section for some amps...

http://forums.maxima.org/forumdisplay.php?f=62

 

no the noise doesn't follow the speed of the engine it is just a loud LOUD whining noise the speakers that make the noise only make the noise. but it is in the amps because I bypassed the amps and the noise stopped. and I totally agree with you that bose makes the best sound systems I mean the speakers sound great after 16 years

 

Definantely the amps...

 

yeah I know it is the amps but I just wanna know if the 95 maxima radio is compatible with the 89 maxima bose amps. cuz I wanna get the 95 maxima bose radio and then get new (new to me) 89 maxima speakers without blown amps.

 

Yeah, the 95 radio will work fine with a harness adapter........

Sounds like the amps need rebuilding - bad caps usually cause the whining/squealing sounds. I've got some old info around soewhere on how to repair these. Will dig them out if you want me to.

There are also places that repair the BOSE stuff for about $90 per amp.

 

well the repair info would be nice if it is not too much trouble, if it is too much trouble I can find the amp and speakers on ebay for like 20 bucks each so it is not really a big deal.

thanks for the info. I just wanted to know if the 95 radio would blow the amps like the Kenwood did.

 

oh and I have one last question, how well would it worked if I used the preouts on the JVC to send audio to the speakers instead of the powered channels which are 45 watts each?

 

the preouts only sends a signal to an amp...and from there to the speakers. you won't get anything (might be very very little) if you just connected your preouts to your speakers.

 

no I was talking about connecting preouts to the bose amps

 

hmmmmm, let me get this straight, since I haven't done any research on the head units that you are speaking of, I will generalize here, so bare with me.

Let us assume that most head unit comes with a set of pre-out correct? one for the left channel, and one for the right

It is also known that the BOSE system in our car have (4) individual amps mounted at each speaker pods.

Also, from reading your info, it is almost certain that your BOSE amps are blown

SO, in order for you to get a fully functioning system, you will need:

a) fix the BOSE amps, if you can do it yourself, then it won't be alot, since parts are relatively cheap, and you provide the labor. Other than that however, you will be looking int the hundreds.
i) in order to get to the amps, you must disassemble both front door panels, and open up the rear.

b)buy Y RCA type conjunction in order to split the signals up into four different pairs if signal wire, then solder that in place with the stock signal wires
i) each Y conjuntion adapter will run about 3 bucks each

c)if you haven't had a 4th gen head unit already, then you will have to buy that too
i) the head unit cost is a finite variable, ranging anywhere from 30-70 bucks
ii) the head unit will be 6 years young at the newest, and 10 years old at the oldest
of the 4th gen
d) the size of the speakers for the front is 4", that information is given, so there is really no need to search for a size that fits, or you can buy a pair of GXE speaker mount that will accomodate 4x6, or ply wood it and fit a 6 1/2

e) the original BOSE speakers are made out of a carton like paper material, which over the course of 16 years are dry, brittle, and may even be a bit rotten. so it might blow any time, any place.

When adding up A-C, the cost will seem to exceed the cost of a cheabie 4 channel amps, wiring kit, and some replacement speakers.
and since you already have aftermarket HU, those are considered free, so reusing them seems to be logical.

When putting all that together, I think that the need to reuse the BOSE system is outweighed by the steps to get you there.

Moral of the story? Please double check to see if it is worth it. Believe me, it will be worth the time spent "pencilling ideas"

whatever you decide to do, good luck.

 

dood my mom work for bose, and in the maxima they put the worst speaker system in the 300xz and the maxima's id say rip all the bose out and take out all the preamps to the bose speakers and put somthing better in there. bose sucks, the only thing there good for is getting a discount for a 42 in plazma TV. Samsung (btw TV is sweet )

 

i think the bose sounds good in my max

 

Thanks for all the help I think I am gonna try to rebuild the bose amps and hook the preouts from my aftermarket head unit up to them. and my head unit is a jvc kd-lx30 with 3 sets of preouts front left and right, rear left and right, and then I guess left and right sub woofer. I will probly end up looking for blown caps on the amps and replacing them. oh and my speakers are not blown or rotting at all, I looked at all of them when I was bypassing the amps. thanks again for all the help!

 

By the way, bad caps=whining noise. Blown FETs=no sound output (or very, very low).

I still haven't found the info I had a couple of years ago when I replaced the caps. I'll look some more.

I'm not sure the pre-outs from a non-BOSE headunit will work correctly going to the BOSE amps. You'll have to check the JVC headunit outputs for the pre-outs and see if it matches the BOSE unit (in millivolts I believe). Otherwise, I don't think it'll work correctly. Or, do you have an adapter to use from the JVC into the BOSE amps?

 

damn this is getting complicated lol I will have to check. Where can I find out the ratings on the bose amps?

 

Dude, that whining noise your hearing might be from a bad alternator ground. for whatever reason it comes through the speakers. my car has it, but, ive learned to live with it cause im to lazy to fix it

 

well only some of the speakers do it. and I am nearly 100% sure the amps are blown. But anyways since then I have spent 280 dollars buying a 19 inch lcd for my computer so I do not have the money to waste on it lol. so what I am doing is I am gonna buy a used 4 channel amp off of ebay and hook the bose speakers up to that amp. if the 1 ohm bose speakers eventually blows the 20 dollar amp then I do not care lol. hopefully it works

 

just bypass the amps, use the speakers until they blow man, the way I figure it, if you're going to do something do it right, if you cheap out, then just don't do it at all. Not meant to be negative or anything, just the way I think about the situation.

 

well if I had bypassed the amps and connected them straight to the head unit I would have blown the channels on the head unit. Since my head unit cost me over 300 dollars a few years ago I would rather blow a cheapy amp. Anyways since my last post I located a 1997 maxima radio for 40 bucks and by my ghetto testing method it works! so I am waiting for the harness to be shipped to me and then I will have my system done right and also I bought new bose speakers and amps off of ebay. for 15 dollars each.

 

congrats on your find, good to hear things work out for you. as for the blown aftermarket HU with stock bose, I myself am running 2 rear aftermarket speaker, and two front bypassed BOSE for over a year now, no problem at all.

 

haha well your head unit may be living on borrowed time since I have read that the bose speakers are 1 ohm and at least I have never seen a head unit that was 1 ohm stable and even 1 ohm stable amps are rare. but who knows I am not an expert I just jerry-rig things lol

oh and I was running the aftermarket HU on the bose amps for a long while before the amps blew. actually I bought it with an aftermarket HU in it so I have no idea how long it was running like that.