So i got my new pioneer AVH-3200BT installed. All is well until i start the engine. Then there's a high pitched whine through the speakers which increases with engine revs.....any one know a quick fix/cause?
Thnaks,
Giles.
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So i got my new pioneer AVH-3200BT installed. All is well until i start the engine. Then there's a high pitched whine through the speakers which increases with engine revs.....any one know a quick fix/cause?
Thnaks,
Giles.
You using the amp? Take it it's a petrol car? Basically the high pitched whine is ignition noise. If you're using the OEM amp, then your connection to the amplifier is creating a ground loop. Did you use a 'harness adaptor' to connect to it?
Edit: 850R, Diesel of course!
I have bought a harness....says something about not needing some speakers as I have also bought these:
http://cgi.ebay.co.uk/ws/eBayISAPI.d...=STRK:MEWNX:IT
[ame]http://www.amazon.co.uk/STEREO-RADIO-ADAPTOR-WIRING-VOLVO/dp/B004KNAKTE/ref=sr_1_fkmr0_1?ie=UTF8&qid=1301074354&sr=8-1-fkmr0[/ame]
I have connected them together. There is no whine when engine not running tho?
Got this off the seller:
"Giles, the alternator whine is definitely a grounding issue with the HU. The first step is too make sure the new HU is very well grounded to the car. The second thing is to try the alternative wiring schematic if you have not already done so. Hope this is helpful. Best regards, Brian"
So, do i just run a cable (size?) from the HU to a bolt on the body somewhere?
OK - just hooked up an ad hoc earthing lead from bolt on wing and touched it on the stereo....the noise/whine just got worse? 10 times worse?
Check your earth, also the earth on the amp ie if you have bolted it to painted metal or dirty, sand back to bare metal, you will also get this if you run speaker cable and rca cables next to power cables, these should be seperate... done many a amp big speaker system and had this a few times and was either of the above....
Is this the factory amp? try seperating the RCA cables this is normally the problem when you have live next to sound ( rca/ speaker)... not sure where the earth is on the volvo as never looked, but when i did my systems i used to put in my own earths etc but after having whining probs in the past, i have always run sound and live seperate...
To be honest mate, not to sure on that, as never looked at mine....as i say i always did mine from scratch, as in Head unit to amp in boot or under seat, then ran power down one side of car and rca, speaker the other.... but if this factory fit then it is prob a bad earth or suppressor. But most whining like this is either earths, or power cables near rca/speaker cable....
But if running a new earth cable from the head unit, you can get earth cable anywhere ( halfrauds etc) then just bolt it to a non painted metal behind where the unit sits ( obviously make sure enough room and length on cable to get HU back in, but most cable would do it, similar size to the power etc on the head unit....
I noticed when i revved, the interior lights get brighter......is this normal or signs of a dodgy alternator and hey presto, earthing issue?
This site is good:
http://www.mp3car.com/car-audio/1019...tor-whine.html
Thats got to be the earth from the head unit....The pioneer units i had in the past used to run a seperate earth to the car body..... i used to connect to a bit of metal trim behind where the HU goes, preferably something with a bolt and no paint...
Try this link mate hopefully this works....http://www.retrevo.com/support/Pione...3628ag417/t/2/