Nissan 370Z Forum  

2 Head units down the drain

So I have sunk $1000 in labor costs trying to get 2 different head units from 2 different shops to work in my 13 nismo with Bose system and both

Go Back   Nissan 370Z Forum > Nissan 370Z Tech Area > Audio & Video


Like Tree2Likes
  • 2 Post By RonRizz

Reply
 
LinkBack Thread Tools Display Modes
Old 01-13-2016, 07:38 AM   #1 (permalink)
Base Member
 
Join Date: Dec 2015
Location: Florida
Posts: 9
Drives: 13 Nismo
Rep Power: 10
superbase is on a distinguished road
Default 2 Head units down the drain

So I have sunk $1000 in labor costs trying to get 2 different head units from 2 different shops to work in my 13 nismo with Bose system and both have utterly failed. The #1 problem is over-amplification of the audio and steering wheel controls. For starters, I can only crank the volume up to about 10% at which point the speakers become so ridiculously loud it hurts your ears. You can also hear a kind of "hissing" sound when songs fade out or if you pause them, the kind of sound you would expect to hear if you turned your stereo volume up to 100% without playing anything. And of course total failure of the steering wheel controls.

Whats going on here? Why cant anyone get a head unit to work in this thing? I dont know squat about car stereo's, so I cant understand all their technical jargon while they make excuses about what went wrong. They keep talking about hard wiring something through the bose amp, whatever that means. Are they supposed to bypass the bose amp entirely and just splice together the speaker wires with RCA cables and plug directly into the back of the head unit? Is the HU itself an amp? Or are they supposed to tie the new HU into the existing Bose amp in some unique way to prevent what sounds like double amplification?

Head units connected have been

Pioneer 270BT and Joying Android Head unit. Both sounded exactly the same.

At this point I'm just going to have them put the stock HU back in and I'll run a dang cable to the AUX in port, this is ridiculous.
superbase is offline   Reply With Quote
Old 01-13-2016, 09:39 AM   #2 (permalink)
A True Z Fanatic
 
DeliriousClam's Avatar
 
Join Date: May 2015
Location: NJ
Age: 31
Posts: 3,758
Drives: 12 Base Sport
Rep Power: 54272
DeliriousClam has a reputation beyond reputeDeliriousClam has a reputation beyond reputeDeliriousClam has a reputation beyond reputeDeliriousClam has a reputation beyond reputeDeliriousClam has a reputation beyond reputeDeliriousClam has a reputation beyond reputeDeliriousClam has a reputation beyond reputeDeliriousClam has a reputation beyond reputeDeliriousClam has a reputation beyond reputeDeliriousClam has a reputation beyond reputeDeliriousClam has a reputation beyond repute
Default

Sounds like they're putting speaker level output into the amp which is a no no. Need to use a Line output converter to drop the levels. As far as the steering wheel controls go, if you have bluetooth controls, it's a little different. Bigaudiofanat can probably go much more in depth than I can.
__________________
Stillen, AAM, Shine Auto, Fujimora, Swift, EVO-R, Carbon Fiber Element, Nitrous Outlet
MECP Advanced: CEA26671
Most of what I post here are artistic works of fiction and falsehood. Only a fool would take anything I post here as fact.
DeliriousClam is offline   Reply With Quote
Old 01-13-2016, 10:34 AM   #3 (permalink)
A True Z Fanatic
 
JARblue's Avatar
 
Join Date: Mar 2011
Location: Austin, TX
Age: 43
Posts: 36,450
Drives: 11 Z34, 98 E36 M3
Rep Power: 2684440
JARblue has a reputation beyond reputeJARblue has a reputation beyond reputeJARblue has a reputation beyond reputeJARblue has a reputation beyond reputeJARblue has a reputation beyond reputeJARblue has a reputation beyond reputeJARblue has a reputation beyond reputeJARblue has a reputation beyond reputeJARblue has a reputation beyond reputeJARblue has a reputation beyond reputeJARblue has a reputation beyond repute
Default

Did you read this thread? Seems pretty straightforward. Interesting that two different shops were too incompetent to do the work.

What to know about Bose
__________________

2011 370Z 6MT Sport Gun Metallic | ARC | CJM | Ecutek | FI | Fujimura | R2C | SPL | Stillen | TWM | Z1 | ZSpeed |
JARblue is offline   Reply With Quote
Old 01-13-2016, 01:29 PM   #4 (permalink)
Base Member
 
Join Date: Dec 2015
Location: Florida
Posts: 9
Drives: 13 Nismo
Rep Power: 10
superbase is on a distinguished road
Default

Quote:
Originally Posted by DeliriousClam View Post
Sounds like they're putting speaker level output into the amp which is a no no. Need to use a Line output converter to drop the levels. As far as the steering wheel controls go, if you have bluetooth controls, it's a little different. Bigaudiofanat can probably go much more in depth than I can.
Yeah I read the thread on Bose systems but couldnt understand it. I guess I could just direct the installers to that thread and let them study it. Is an LOC a common thing to include when upgrading stock systems? Or is this just some hack to make our systems work? Is it possible to avoid the bose amp entirely and just have all the speakers connect to your own new amp that also powers a sub? Would that be the better solution instead of trying to piggy back off existing hardware?
superbase is offline   Reply With Quote
Old 01-13-2016, 02:02 PM   #5 (permalink)
A True Z Fanatic
 
DeliriousClam's Avatar
 
Join Date: May 2015
Location: NJ
Age: 31
Posts: 3,758
Drives: 12 Base Sport
Rep Power: 54272
DeliriousClam has a reputation beyond reputeDeliriousClam has a reputation beyond reputeDeliriousClam has a reputation beyond reputeDeliriousClam has a reputation beyond reputeDeliriousClam has a reputation beyond reputeDeliriousClam has a reputation beyond reputeDeliriousClam has a reputation beyond reputeDeliriousClam has a reputation beyond reputeDeliriousClam has a reputation beyond reputeDeliriousClam has a reputation beyond reputeDeliriousClam has a reputation beyond repute
Default

Quote:
Originally Posted by superbase View Post
Yeah I read the thread on Bose systems but couldnt understand it. I guess I could just direct the installers to that thread and let them study it. Is an LOC a common thing to include when upgrading stock systems? Or is this just some hack to make our systems work? Is it possible to avoid the bose amp entirely and just have all the speakers connect to your own new amp that also powers a sub? Would that be the better solution instead of trying to piggy back off existing hardware?
LOC is a common thing when installing an aftermarket headunit into a system that has a factory amplifier. The other options are buy the wiring harness which has RCA's on the ends (don't remember the metra model # off hand) or bypass the factory amp which can be a bitch. I've never done it on a Z before so I couldn't tell you how hard it is.
__________________
Stillen, AAM, Shine Auto, Fujimora, Swift, EVO-R, Carbon Fiber Element, Nitrous Outlet
MECP Advanced: CEA26671
Most of what I post here are artistic works of fiction and falsehood. Only a fool would take anything I post here as fact.
DeliriousClam is offline   Reply With Quote
Old 01-13-2016, 05:21 PM   #6 (permalink)
A True Z Fanatic
 
RonRizz's Avatar
 
Join Date: Aug 2011
Location: Pine grove, Pa
Posts: 2,136
Drives: 2 feet, 3 pedals
Rep Power: 6775
RonRizz has a reputation beyond reputeRonRizz has a reputation beyond reputeRonRizz has a reputation beyond reputeRonRizz has a reputation beyond reputeRonRizz has a reputation beyond reputeRonRizz has a reputation beyond reputeRonRizz has a reputation beyond reputeRonRizz has a reputation beyond reputeRonRizz has a reputation beyond reputeRonRizz has a reputation beyond reputeRonRizz has a reputation beyond repute
Default

Deliriousclam hit the nail on the head. They are trying to put a high level signal into an amp that is probably less powerful than the head unit itself. This is why you have so much system noise (hiss) and the audio is blaring at low volume settings..... Any shop that cannot perform this task would not be anywhere near my audio system. I may drive by and let them look at it, but they wouldn't be touching it.
The shop should also refund your $$ for the install. How could they turn the car over to you like that in the first place? I'd be HOT.
by the way, I hope the $1000 you quoted was an exaggeration......unless it included the head unit..
JARblue and RumbleFish like this.
__________________
P99rs Head Unit--- Amps- 2 Pioneer Prs800d --- Zapco ST1000MX---Zapco ST-4XSQ---- SI BM mk5 Subs---SI TM65v2 Midbass--- SI M3 mids--- SI M25 xbl2 tweeters ----- 2016 MECA street class 3rd place at world finals
RonRizz is offline   Reply With Quote
Old 01-13-2016, 07:05 PM   #7 (permalink)
A True Z Fanatic
 
YzGyz's Avatar
 
Join Date: Jun 2013
Location: Houston
Posts: 1,449
Drives: 2010 Nismo
Rep Power: 63
YzGyz has a reputation beyond reputeYzGyz has a reputation beyond reputeYzGyz has a reputation beyond reputeYzGyz has a reputation beyond reputeYzGyz has a reputation beyond reputeYzGyz has a reputation beyond reputeYzGyz has a reputation beyond reputeYzGyz has a reputation beyond reputeYzGyz has a reputation beyond reputeYzGyz has a reputation beyond reputeYzGyz has a reputation beyond repute
Default

I would have to mess with the unit to figure things out but it sound like a amped signal input into the OEM amp which in turn blast speakers. It should not be that hard. I mean a amp just need a signal and they it increases it and pushes it to the speakers. According to the metra harness diagram, you just need to hook up the front speakers and the sub and it should at least play decent.

Who Wants Bose Wiring Diagrams!!

IDK, I would personally have to mess with it to figure it out.

YzGyz
YzGyz is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Head Units at CES 2015????? StanceZ37 Audio & Video 27 03-06-2015 10:44 PM
Android Head Units - Anyone try one yet? 0101 Audio & Video 27 09-29-2014 04:23 PM
Aftermarket head units/nav question Diablo3 Audio & Video 15 05-16-2012 08:04 AM
New Pandora Conroling Head Units bigaudiofanat Audio & Video 11 06-16-2010 11:09 PM
Single din head units? bigaudiofanat Audio & Video 8 08-29-2009 10:48 PM


All times are GMT -5. The time now is 01:33 AM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0 PL2