NRAsteveo

I had my radio on while driving home. My sub and amp were on along with the speakers then the only thing on was the amp. I replaced the head unit, changed the fuses, checked the speakers. No sound from them. I disconnected the amp in sub from my trunk. What could be the problem I just found out there are amps with the speakers should I remove them?

Will92

Hi all:

For the first time in the twenty years I've owned my 95 Maxima SE with stock Bose system, the display went blank after I started the car. Later it went on again till I shut off the car. I'm pretty sure I can figure out how to remove it from a you tube video I saw but has anyone used Factory Car Stereo Repair in Longwood FL? I read the link about replacing resistor R510 but don't want to risk further damage by attempting the repair myself. I've always been happy with the system so my preference is to have it repaired. Failing that, I would need to turn the job over to a car stereo shop and perhaps replace everything. Any advice appreciated. Thanks

androenthusiast

Finally got around to installing the PAC ROEM-NIS2 and, oh boy, what a world of difference. The audio system is back to it's old glory. In fact, it can get uncomfortably loud past the 60-70% volume mark and starts to distort - something I guess I can fix by adjusting (down) the gain on the PAC unit. Note that my factory-installed (Clarion) unit could never reach this level of loudness.

So, my conclusion (for my Maxima 2000 SE) is that even with 4v pre-outs, the factory amp doesn't get the signal level it is expecting resulting in gross underperformance. An LOC is the way to go.

Thanks DJ for the inputs and the OP for staring this thread. I guess I will be keeping my Maxima for a few more years :-).

djfrestyl

iTrader: (89)

maxwannabenow

iTrader: (3)

Just wanted to update my experience with replacing the HU on my 03 and keeping the rest of the BOSE system. I did change from a HU with a 2.5V output to a 4V output connected to the RCA outputs of the receiver. It did make it a bit louder but still on some songs that were were not that loud it still was not sufficient. I replaced it with the high level harness and it made a BIG difference! The installation guy was even really impressed with how good it sounded and they trim the output down so that there was no distortion at all. So if you are doing the same thing don't worry that you will lose any sound quality by going with the high level output harness.

MikesChevelle

I just bought an 02 that has 4 Bose door speakers and to my eye, no subs on the rear deck. It came with a junk Boss head unit and the whole system sounds aweful. Is that because the speakers arent being driven well by the Boss (1ohm vs 4ohm)

I will likely get a new head unit, but I assume I will hit the same problem with the speakers??

djfrestyl

iTrader: (89)

Hmm.

What we need to do is determine what your car should be.

1. Is it that your car originally had Bose (hence the speakers in the doors), and the sub and HU was removed?

2. Is it that your car is originally NON-Bose (hence the missing subs), and someone added the Bose speakers?

Either way, you have a hybrid, and you should work towards putting it back to where it originally was and should be (so the Bose or non-Bose wiring and amps mate properly), then see how it sounds.

MikesChevelle

If I had to guess I would say the bose were added, what is a good way to find out what was OEM to my car?

djfrestyl

iTrader: (89)

You mentioned no Bose sub.

Is there a black rectangular Bose amp mounted underneath your rear deck? Look in the trunk and look up. If no amp, are there any loose wiring harnesses? Does your rear deck cover have a rectangular grille/ cutout with a Bose logo on it?

Those are tell-tale, and the least likely for someone to change if they remove the Bose system. The harnesses especially, should still be there if Bose.

If certain non-Bose, the first thing I would do is get 4 aftermarket 4ohm speakers and replace the Bose speakers in the doors. At the same time, double check how the HU is wired up.

MikesChevelle

I have nothing on the back deck, looks like I am selling my speakers

Jamie Bolus

Hey guys got a question that belongs in this thread..

I'm driving a 98 Maxima GLE,
I've installed a JVC KD-A735BT single din deck, ordered the wiring harness from my local professional sound system installation business and like this post says i'm getting some whining through my speakers as well as i can hear clicking, which i'm going to assume is the stock bose amp flickering on/off.


will attempt to use multimeter and adjust ground a bit and post results but
does anyone have any suggestions for the amp flickering?

djfrestyl

iTrader: (89)

Whine sounds like a poor or improper ground.

How - specifically - did you wire the HU?

Jamie Bolus

I'm just off to work now but i can post pictures of my wiring later tonight early tm morning, if that's what you were curious about.

djfrestyl

iTrader: (89)

Don't need to see pictures. Which harness did you use? Which wires did you connect where? How is the amp turn on wire connected?

Jamie Bolus

i fixed the wiring issue you were correct and i made separate grounds for all 3, everything seems to be working nicely, i don't hear any whine from the alternator.
my next issue now i cannot seem to figure out is the volume of my speakers, they seem to be awfully low i have to crank up volume on both my ipod and HU for it to reach a cruising level of loud :P

any obvious reason for the volume to be so low?
I have two infiniti 6x9 in the doors and i left the stock bose in the trunk, but even they aren't as loud as they were with the stock HU radio.

djfrestyl

iTrader: (89)

The correct way is that grounds should be combined - but if you have no noise, should be fine.

This exact thread talks about low volume vs preout voltage vs specific harness and wiring method to use. Chances are, one of these factors was not considered.

Nathan Campbell

I have a 2001 Nissan maxima se 20th anniversary edition with the 7 speaker bose sound system it sounds great just one problem its all stock which I think is fine but the sub in the back window stops working when ever it wants how can I fix this

djfrestyl

iTrader: (89)

Common problem. Search this site. There's a repair procedure, or you could replace it with a junkyard or classifieds part.

Govols83

iTrader: (5)

ok, I need help. I am installing a parrot asteroid smart in my 02 max with bose. When I first turned car on, head unit would not come on, then I connected the antenna, which I did not know grounded the unit. The Parrot did power up then. However, it sounds horrible. Low volume, and I swear it sounds like only the front speakers are putting out sound.


I used the 70-7051 harness, and the parrot has 6v preamp outputs, should that not be powerful enough?


Also, for the grounding, I just connected the black ground wire of the head unit to the ground wire of the harness. Is this my problem? Should I instead connect both grounds to the chassis?

djfrestyl

iTrader: (89)

Do you mean 70-7551?

I would definitely chassis ground it in addition to harness ground.

Govols83

iTrader: (5)

Yes, I meant 70-7551 sorry about that, lol.


Would not using chassis grounds be the cause of the low volume, distortion?


I would think 6v pre outs would be sufficient for the metra harness right?

djfrestyl

iTrader: (89)

Possibly. But I think you need to try it out, to resolve your specific issue, instead of spending time inquiring online.

Yes, should be.

Govols83

iTrader: (5)

Well, I fixed all of my grounds. Sound quality improved slightly, but overall loudness and quality is nowhere near the level of the factory deck. Some songs sound alright, but bass is very weak, and when I turn it up loud enough that bass is louder it sounds like total crap.

I just don't get it, I thought for sure the 6v preamps of the Asteroid Smart would be plenty. I guess I will just have to bite the bullet and buy a LOC. Since I already have the 70-7551, would the scosche be the best way to go?


Oh, and to make matters worse, I can't get my aswc-1 to work for my steering wheel controls either

djfrestyl

iTrader: (89)

They could just be very low quality preouts. But could still also be a wiring or configuration issue.

Try an LOC. Any will do.

Sounds like a pro installer would have saved you the troubles!

Govols83

iTrader: (5)

Could be a possibility with the preouts. The last time I used a "pro installer" on my 01 with Bose, they used the metra 70-7550, which reading this thread is apparently a big no no, but funny thing is it seemed to work fine for the 6 years it was installed

djfrestyl

iTrader: (89)

It's not a no-no. You're welcome to do that instead of LOC

Govols83

iTrader: (5)

Thanks for the help, btw. You know, I'm beginning to think that the LOC might be the way to go for most people. It seems like the 7551 only works with select pre outs to me. I will report back whenever I get the LOC installed

Govols83

iTrader: (5)

Installed the Pac Roem-Nis2 and wow!!!!! I never thought the BOSE system could sound so good. It can get insanely loud without any distortion. OEM subwoofer has new life. In my opinion, the Pac unit is the way to go no matter what head unit you choose.

djfrestyl

iTrader: (89)

Yep, a new HU breathes new life into the Bose system.

Nice job, glad it worked out for you.

jwacker

I just replaced the Bose stereo in my 2002 maxima. I bypassed the amp by running new speakers and hooking them up directly to my new stereo. Now the dash lights don't work. I checked all the fuses and they look good. As far as I can tell, everything else is working. Any ideas?

djfrestyl

iTrader: (89)

You checked all 3 fuseboxes? 2 under the hood and 1 under the dash?

jwacker

I checked the one under the dash and the one by the batter under the hood. I'm not sure how to check the fuses on the other side of the hood.

djfrestyl

iTrader: (89)

It's has relays primarily. Don't recall if any fuses in there.

In any case, keep checking. Something blew or wasn't wired right.

Infiniti2000I30tUgh

Well guys I got a Boss system ( ) and got to wiring it up with the adapter kit. It doesn't have a dimmer or illumination wire and works great even with the backup camera - until I turn the lights on. Then everything dies. Is anyone else having this problem or am I the only one that can't seem to wire a simple stereo?


Side note, my screws holding the Bose system on were tightened to "Scrape your drawers" tightness. I had to drill the dang things out!





EDIT: Well guess what? You probably figured that faulty wiring can cause my problem but I can now add that if you let the battery run down while playing with the radio during install and turn the lights on the same thing will happen. Duh.
Charged the battery and all is well. Works 100% now. One too many late nights I guess!

djfrestyl

iTrader: (89)

This is common and theres a known trick for it.

Yea, that'll do it!

Standard practice is to disconnect the battery when doing any electrical work.

Infiniti2000I30tUgh

What's the trick?

djfrestyl

iTrader: (89)

Use a screwgun with an impact setting. Gradually increasing the impact strength, TIGHTEN until you hear a click, then loosen. Comes right out.

Infiniti2000I30tUgh

Haha, that's a good idea. I tried the old "Tighten first, then loosen" with a screwdriver and it just stripped out. Would have been a good excuse to buy a new tool. Dang it

Thanks for the tip!

djfrestyl

iTrader: (89)

Np. The key is using your weight to make sure the bit is held in there, and let the drill do the work.

ptatohed

iTrader: (12)

My '96 GLE Bose head unit died. I have access to a 4th gen non-Bose head unit. Does anyone know if I can stick an OEM non-Bose head unit into my '96 GLE? Thanks.