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07 Toyota 4Runner amp replacement
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<blockquote data-quote="Jimi77" data-source="post: 8828161" data-attributes="member: 673702"><p>You had a bad amp so you replaced the HU? You should have replaced the amp with a small aftermarket amp. Replacing the HU is kinda like doing a brake job because you have a flat tire. That said a modern HU is a worthwhile upgrade and replacing the amp would have required a ton of splicing. </p><p></p><p>The HU's internal amp is useless because the way you're wired right now sends the signal to a dead amp, so you still have no sound. You have 2 choices. Replace the dead amp. Your other option is wire directly from your new HU to the stock speakers. <a href="http://www.installer.com" target="_blank">www.installer.com</a> has a harness to bypass the amp for a lot less than Crotchfield. Looks like you'll have run wire from the HU to the amp, disconnect the amp and then it's plug and play. Metra's instructions say it's good thru 2006, but installer.com says 2007 and Eddie Runner (installer.com's owner) has been around the block a few million times, so I tend to trust him. You might want to double check what they say on the 4-runner forums. There may have been a model change in 2006/07 or a change in the audio systems Toyota was using. </p><p></p><p>Double check the ohm rating on the OEM speakers. If they're lower than 4 ohms, you'll need to replace them as well or you'll fry the Pioneer HU. If the OEM speakers have foam surrounds they may be due for replacement anyway. If you have separate mids/tweets up front then you're going to need to do some rewiring to properly replace those drivers. Now you can see why a lot of us would have just scraped the old OEM system altogether. </p><p></p><p>Good Luck. </p><p></p><p>[URL unfurl="true"]https://www.installer.com/cars/by_car.php?carid=11374[/URL]</p><p>[URL unfurl="true"]https://www.installer.com/item/display_item.php?it=70-8117[/URL]</p><p>[URL unfurl="true"]http://www.metraonline.com/files/products/INST70-8117.pdf[/URL]</p></blockquote><p></p>
[QUOTE="Jimi77, post: 8828161, member: 673702"] You had a bad amp so you replaced the HU? You should have replaced the amp with a small aftermarket amp. Replacing the HU is kinda like doing a brake job because you have a flat tire. That said a modern HU is a worthwhile upgrade and replacing the amp would have required a ton of splicing. The HU's internal amp is useless because the way you're wired right now sends the signal to a dead amp, so you still have no sound. You have 2 choices. Replace the dead amp. Your other option is wire directly from your new HU to the stock speakers. [URL='http://www.installer.com']www.installer.com[/URL] has a harness to bypass the amp for a lot less than Crotchfield. Looks like you'll have run wire from the HU to the amp, disconnect the amp and then it's plug and play. Metra's instructions say it's good thru 2006, but installer.com says 2007 and Eddie Runner (installer.com's owner) has been around the block a few million times, so I tend to trust him. You might want to double check what they say on the 4-runner forums. There may have been a model change in 2006/07 or a change in the audio systems Toyota was using. Double check the ohm rating on the OEM speakers. If they're lower than 4 ohms, you'll need to replace them as well or you'll fry the Pioneer HU. If the OEM speakers have foam surrounds they may be due for replacement anyway. If you have separate mids/tweets up front then you're going to need to do some rewiring to properly replace those drivers. Now you can see why a lot of us would have just scraped the old OEM system altogether. Good Luck. [URL unfurl="true"]https://www.installer.com/cars/by_car.php?carid=11374[/URL] [URL unfurl="true"]https://www.installer.com/item/display_item.php?it=70-8117[/URL] [URL unfurl="true"]http://www.metraonline.com/files/products/INST70-8117.pdf[/URL] [/QUOTE]
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