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<blockquote data-quote="o. l. t." data-source="post: 6280719" data-attributes="member: 569202">*facepalm* Ignore everything above.You are not properly exchanging air in your trunk and letting the sub breathe. You need to provide more air exchange in the trunk. Ideally, most trunks are vented from the factory. Your car being an overseas car, who knows. It definitely doesn&#039;t conform to US standards so it might not be vented. It certainly doesn&#039;t SOUND like it is vented.Nothing you can do will make an improvement until you vent the trunk. So forget aiming them, forget covering your walls in anything, forget everything except the idea&nbsp; of venting your trunk. lean the seat armrest forward in the back seat if you have one and open the ski pass to the trunk. Lay a back seat down if you can. In extreme cases I have seen people use 2 inch hole saws to drill out the trunk, which is pretty extreme and I wouldn&#039;t bother unless you could find a way to justify going that far.This is the interior to your car: <a href="http://files.conceptcarz.com/img/Nissan/nissan_bluebird_sylphy_manu-06_02.jpg" target="_blank">http://files.conceptcarz.com/img/Nissan/nissan_bluebird_sylphy_manu-06_02.jpg</a>When you fold that armrest down on the back seat, does it have a way to go through to the trunk? If so, get that hole open. It&#039;s a nice big hole that will vent your trunk. It&#039;s not about getting sound out, it&#039; about getting air in.</blockquote>

[QUOTE="o. l. t., post: 6280719, member: 569202"] *facepalm* Ignore everything above. You are not properly exchanging air in your trunk and letting the sub breathe. You need to provide more air exchange in the trunk. Ideally, most trunks are vented from the factory. Your car being an overseas car, who knows. It definitely doesn't conform to US standards so it might not be vented. It certainly doesn't SOUND like it is vented. Nothing you can do will make an improvement until you vent the trunk. So forget aiming them, forget covering your walls in anything, forget everything except the idea of venting your trunk. lean the seat armrest forward in the back seat if you have one and open the ski pass to the trunk. Lay a back seat down if you can. In extreme cases I have seen people use 2 inch hole saws to drill out the trunk, which is pretty extreme and I wouldn't bother unless you could find a way to justify going that far. This is the interior to your car: [URL="http://files.conceptcarz.com/img/Nissan/nissan_bluebird_sylphy_manu-06_02.jpg"]http://files.conceptcarz.com/img/Nissan/nissan_bluebird_sylphy_manu-06_02.jpg[/URL] When you fold that armrest down on the back seat, does it have a way to go through to the trunk? If so, get that hole open. It's a nice big hole that will vent your trunk. It's not about getting sound out, it' about getting air in. [/QUOTE]

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