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Old 6th June 2017, 15:41   #13501
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Default Re: Car Audio Advice from the Audio Gurus: Use "Search thread" before posting a new Q!

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Originally Posted by navin View Post
There has got to be some mechanical source for that noise. I assume at higher levels of music the noise is just not audible.

Please check that the rubber glue that attaches the surround to the gasket has not dried up. Sometimes this happens and the rubber surround flaps against the gasket.
Will check and report.
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Old 8th June 2017, 01:07   #13502
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Default Re: Car Audio Advice from the Audio Gurus: Use "Search thread" before posting a new Q!

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Will check and report.
It could be elsewhere in the chain as well.
Assuming your left midbass is the issue, swap it with the right midbass to confirm the issue is with the speaker.
If on swapping, the problem only remains on the left side, the problem lies elsewhere.

Trace back only the problematic channel down the chain. Sometimes it could be as simple as lose wiring, a dirty or a failing gain pot on the amp if you are using one, or some issue with the left channel of the Head Unit.
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Old 8th June 2017, 17:28   #13503
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Default Re: Car Audio Advice from the Audio Gurus: Use "Search thread" before posting a new Q!

Headphone amplifiers for Car HU ?

My A-Star has an OE Stock HU, with only an Aux-In port. If I want to use a music player, then the output from the player's headphone jack is such that the play back on the HU is quite low. Is there any way to amplify the signals to the HU ? Some kind of amplifier ?
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Old 8th June 2017, 17:42   #13504
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Default Re: Car Audio Advice from the Audio Gurus: Use "Search thread" before posting a new Q!

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Originally Posted by condor View Post
Headphone amplifiers for Car HU ?

My A-Star has an OE Stock HU, with only an Aux-In port. If I want to use a music player, then the output from the player's headphone jack is such that the play back on the HU is quite low. Is there any way to amplify the signals to the HU ? Some kind of amplifier ?
I might entirely make a fool of myself by suggesting this but on my phone the headphone volume levels would always reduce to 50% after being plugged in. You have to manually increase the volume and the phone also warns with a message that I might damage my ears if I raise the headphones' volume to max.
So, please see for once if after plugging in an aux cable to the phone (source), not only do you set the HU volume to your desired levels, but phone volume levels to max too.
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Old 8th June 2017, 17:56   #13505
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Default Re: Car Audio Advice from the Audio Gurus: Use "Search thread" before posting a new Q!

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Originally Posted by Divya Sharan View Post
So, please see for once if after plugging in an aux cable to the phone (source), not only do you set the HU volume to your desired levels, but phone volume levels to max too.
The problem is the volume when having to switch to Radio.
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Old 9th June 2017, 07:23   #13506
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Default Re: Car Audio Advice from the Audio Gurus: Use "Search thread" before posting a new Q!

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Originally Posted by condor View Post
Headphone amplifiers for Car HU ?

My A-Star has an OE Stock HU, with only an Aux-In port. If I want to use a music player, then the output from the player's headphone jack is such that the play back on the HU is quite low. Is there any way to amplify the signals to the HU ? Some kind of amplifier ?
The headphone outputs from music players are designed to drive earphones/headphones. Their output sensitivity is quite low.
You can use a high gain preamp between the music player and the HU, but that is likely to only increase the noise floor.
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Old 13th June 2017, 11:15   #13507
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Default Re: Car Audio Advice from the Audio Gurus: Use "Search thread" before posting a new Q!

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Originally Posted by gkannan View Post
It could be elsewhere in the chain as well.
Assuming your left midbass is the issue, swap it with the right midbass to confirm the issue is with the speaker.
If on swapping, the problem only remains on the left side, the problem lies elsewhere.

Trace back only the problematic channel down the chain. Sometimes it could be as simple as lose wiring, a dirty or a failing gain pot on the amp if you are using one, or some issue with the left channel of the Head Unit.
Thanks a lot.

Found the problem and eliminated it.

The amplifier driving the mids was the culprit. Disconnected it, and moved the mids to the hertz HCP4 which had been driving the tweeters. The mids have started playing normally, though will have to scout for a higher power amp now. Any pointers?
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Old 13th June 2017, 11:54   #13508
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Default Re: Car Audio Advice from the Audio Gurus: Use "Search thread" before posting a new Q!

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Originally Posted by Enigmatic View Post
Has any one tried mirroring their their iphone/android to a headunit which does not support mirrorlink?
...

If any of you have undertaken a similar activity, could you please share the RCA to HDMI cable/adapter you bought. There seem to be many available online however the reviews are not very comforting.

Best,
Enigmaitc
An update.

I did some reading and found that many HDMI to Composite wires don't actually work since 'active electronics' are involved in converting HDMI signals to Composite signals. So one needs to get a HDMI to Composite converter box and then attach all the wires to it. However my main issue with a HDMI to Composite converter box was that it requires a separate power input (micro usb). This would end up messing the install with too many wires going around. So after some more reading, I came across a HDMI to Composite wire by Medialinx which actually works but was not available in India. As luck would have it, my sister was flying down from US and along with her came the cables. I also ordered an Apple Lightning AV Adapter for connecting the HDMI cable to my iPhone (the lightning adapter is available in India however it costs almost twice what one pays in US).

After getting everything installed, which was rather simple, your phone gets mirrored onto the headnuit. Applications which support Apple TV open in full screen on the headunit, other applications such as google maps open in portrait however once you tilt your phone to landscape, the application opens up in full screen on the headunit as well. I could not be happier, I finally have google maps on the headunit!

Product listing on Amazon:

Medialink - https://www.amazon.com/iSimple-ISHD0.../dp/B00LUX1F5K

Lightning Adapter - https://www.amazon.com/Apple-Lightni...htning+adapter

Best,
Enigmatic

Last edited by Enigmatic : 13th June 2017 at 11:57.
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Old 25th June 2017, 17:53   #13509
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Default Re: Car Audio Advice from the Audio Gurus: Use "Search thread" before posting a new Q!

I am looking to install a woofer to my stock head unit of my Ciaz Alpha.

I went to a shop and he said since the head unit does not have a Pre Out hence a RC convertor would be required and would cost 4,200. Any idea what this is?

Also can someone suggest a self powered woofer so I don't have to but a woofer and amplifier separately(saves space)?
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Old 26th June 2017, 11:29   #13510
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Default Re: Car Audio Advice from the Audio Gurus: Use "Search thread" before posting a new Q!

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Originally Posted by Foxbat View Post
I am looking to install a woofer to my stock head unit of my Ciaz Alpha.

I went to a shop and he said since the head unit does not have a Pre Out hence a RC convertor would be required and would cost 4,200. Any idea what this is?

Also can someone suggest a self powered woofer so I don't have to but a woofer and amplifier separately(saves space)?
I think your car audio guy talked about a High level to low level converter. Typically they sell for 3-4k so the price you mentioned is about right. However do make sure that there is no alternator whine after installation. These devices can be a little sensitive (depends a lot on car model etc).

An active sub will save a little space. There are some under seat subwoofers that can fit under the passenger's seat but these do not provide LOW bass. Instead they provide a mid bass hump.

I don't remember exact models for the active subwoofers available today, but the usual suspects are Blaupunkt, Kenwood, JBL, Pioneer, Focal and a few others.
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Old 26th June 2017, 13:25   #13511
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Default Re: Car Audio Advice from the Audio Gurus: Use "Search thread" before posting a new Q!

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Originally Posted by Foxbat View Post
I went to a shop and he said since the head unit does not have a Pre Out hence a RC convertor would be required and would cost 4,200. Any idea what this is?
Most entry level amps come with speaker level inputs, so not sure you need to buy one of those. For example, look at the blaupunkt EMA 255 - you can get a whole stereo amp with speaker inputs for less than the cost of the convertor
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