budgetkiller 10+ year member
Member
Hey guys, here's the deal. Im a college student and I do installs on the side to make a few bucks here and there. So I had what I deem a "customer" come to me wanting subs. His car already had an aftermarket hu and speakers installed a while back with no issues. I could tell by some leftover evidence that this was not the first system to go into this car.
Well, I ran the wires, amounted the amp, wired the subs and thought all was good. I used the "P. Cont." Wire behind his Kenwood hu as a remote line (shoulda checked it with a meter but I seemed to recall from memory that that was the right wire. Popped the faceplate back on, amp powered up, everything worked perfect and he drove home a happy customer (he was extra thrilled that his rearview mirror fell off on the way).
Well, he bought his stuff new and the amp that came with the package was a d25000.2 Polk and with Svc 4 ohm subs it was only rated 125wrms a channel. I sold him my second hand Kenwood kac-7204 that I had previously used for months without a single issue since it's rated at 170wrms a channel for svc 4 ohm subs.
Fast forward 2 days (he still hasn't paid me, we were still negotiating a price) and I get a phone call. "Hey, um, the subs keep killing my battery. Like everytime I start my car I need a jump." I asked him a few questions like if the amp shuts off and he said he doesn't think it does. But I know the amp wasn't on until we turned the hu on but I didn't check if it turned off. Could it be possible that the amp went faulty and is stuck on? He said his battery is old and their replacing it today. Could the subs just have finished off a weak battery in the course of a day? I read somewhere that a bad ground on the amp can cause this. I did use a pre-existing wood screw ground into the metal floor of the trunk that was obviously from a previous system (due to time running out) but I hit the metal with a wire brush wheel first. Could that be it? I ran 6 GA. Scoshe wiring which should be more than enough for 340wrms if that matters.
Please help. Does it sound like it's my fault? If I screwed up I'll knock the price way down because that ain't right. But if it's nothing I did I kinda need the cash and don't want to be accused of issues out of my control. Thanks guys. I haven't felt this bad since I had my friend touch the remote wire to the battery and suddenly the fosgate amp started on fire (was told later it was faulty). Still probably won't ever touch a remote wire to the battery again.
Well, I ran the wires, amounted the amp, wired the subs and thought all was good. I used the "P. Cont." Wire behind his Kenwood hu as a remote line (shoulda checked it with a meter but I seemed to recall from memory that that was the right wire. Popped the faceplate back on, amp powered up, everything worked perfect and he drove home a happy customer (he was extra thrilled that his rearview mirror fell off on the way).
Well, he bought his stuff new and the amp that came with the package was a d25000.2 Polk and with Svc 4 ohm subs it was only rated 125wrms a channel. I sold him my second hand Kenwood kac-7204 that I had previously used for months without a single issue since it's rated at 170wrms a channel for svc 4 ohm subs.
Fast forward 2 days (he still hasn't paid me, we were still negotiating a price) and I get a phone call. "Hey, um, the subs keep killing my battery. Like everytime I start my car I need a jump." I asked him a few questions like if the amp shuts off and he said he doesn't think it does. But I know the amp wasn't on until we turned the hu on but I didn't check if it turned off. Could it be possible that the amp went faulty and is stuck on? He said his battery is old and their replacing it today. Could the subs just have finished off a weak battery in the course of a day? I read somewhere that a bad ground on the amp can cause this. I did use a pre-existing wood screw ground into the metal floor of the trunk that was obviously from a previous system (due to time running out) but I hit the metal with a wire brush wheel first. Could that be it? I ran 6 GA. Scoshe wiring which should be more than enough for 340wrms if that matters.
Please help. Does it sound like it's my fault? If I screwed up I'll knock the price way down because that ain't right. But if it's nothing I did I kinda need the cash and don't want to be accused of issues out of my control. Thanks guys. I haven't felt this bad since I had my friend touch the remote wire to the battery and suddenly the fosgate amp started on fire (was told later it was faulty). Still probably won't ever touch a remote wire to the battery again.
