This car has always had a lot of noise from the engine bay and vibrations through the boot lid and doors.
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(nobody can work out why and it drives really well and does lots of miles.
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Its like its been apart and not put back together with all the washers/bushes etc although nothing seems to be missing or loose, and its worse at idle).
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Any suggestions where to put the sound deadening?
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How much space is there for deadening material behind interior trims so that I get stuff the right thickness, and still allowing air to circulate wherever toyota meant it to circulate?
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(I dont want the material to prevent air circulation if it will create places for moisture to collect and cause rot/rust).
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A related issue is my door speakers
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(alpine spg-13cs 65w rms components driven by an alpine head unit 9880r
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- that old!) need to be turned up quite loud to produce nice sound.
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The speakers can easily handle that volume without distortion but my hearing cant take it for too long
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(unless I open the windows or take the Tbars off) so I have to turn them down again to save my hearing.
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To give you an idea what I mean, volume level 12 is ok for talking stuck in traffic, volume 15 on the motorway, but the best sounds from these speakers
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dont kick in until volume level 18-20 even when stopped in traffic.
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I think the head unit goes up to volume 30ish.
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Is there anything I can do with this setup to get the nicer sound without them being turned up so loud?
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Otherwise what speakers will produce nice sound at lower volume
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(say similar price to the alpines that wont break the bank unlike the really high end stuff lol)