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<blockquote data-quote="Trem" data-source="post: 8839813" data-attributes="member: 688777">So, I went to power up a new Pioneer GM-D9705 amp today, in 2022 F150, and within a minute, I smelled electrical overheating, and jumped out to see the amp smoking. Prior to smelling, I heard a tone over the speakers as soon as the radio powered up, with the same pitch as the characteristic &quot;speaker wire beside battery cable&quot; sound, but the sound gradually became lower and lower pitch until I smelled and then saw the smoke. My question is, was this amp defective, or did I do something wrong?Per spec, I ran 4awg wire from battery, fused a few inches from the battery at 100A, and ran 4awg ground to a bolt behind back seat (I didn&#039;t scrape any paint on this, but relied on confidence from two other OEM wires being grounded here, and assume it&#039;s okay, going through the bolt threads that are in contact with body). Bought a Plug and Play harness for radio, ran signal through LC2i via rear speakers, then everything back up to the front via speed wire.It&#039;s been a lot of years since I&#039;ve messed with car audio, and hesitant to chance frying a second amp.Speakers are,JL sub, 8&quot; (CP108LG-W3v3 Single 8W3v3), 4 olm, 250 RMSRockford Fosgate front/rear, think around 60-80 RMS.Amp is Pioneer GM-D9705, 75x4 and 350x1, all at 4 olm.So did I do something wrong here? Killin me, after all the hours and money and time spent.Thanks</blockquote>

[QUOTE="Trem, post: 8839813, member: 688777"] So, I went to power up a new Pioneer GM-D9705 amp today, in 2022 F150, and within a minute, I smelled electrical overheating, and jumped out to see the amp smoking. Prior to smelling, I heard a tone over the speakers as soon as the radio powered up, with the same pitch as the characteristic "speaker wire beside battery cable" sound, but the sound gradually became lower and lower pitch until I smelled and then saw the smoke. My question is, was this amp defective, or did I do something wrong? Per spec, I ran 4awg wire from battery, fused a few inches from the battery at 100A, and ran 4awg ground to a bolt behind back seat (I didn't scrape any paint on this, but relied on confidence from two other OEM wires being grounded here, and assume it's okay, going through the bolt threads that are in contact with body). Bought a Plug and Play harness for radio, ran signal through LC2i via rear speakers, then everything back up to the front via speed wire. It's been a lot of years since I've messed with car audio, and hesitant to chance frying a second amp. Speakers are, JL sub, 8" (CP108LG-W3v3 Single 8W3v3), 4 olm, 250 RMS Rockford Fosgate front/rear, think around 60-80 RMS. Amp is Pioneer GM-D9705, 75x4 and 350x1, all at 4 olm. So did I do something wrong here? Killin me, after all the hours and money and time spent. Thanks [/QUOTE]

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