Me&my86MJ Posted September 18, 2018 Share Posted September 18, 2018 Where did everyone who has a subwoofer choose to ground it? I am thinking the stud the bottom of the bench would work but i feel like there is a better option. Link to comment Share on other sites More sharing options...
Pete M Posted September 18, 2018 Share Posted September 18, 2018 I grounded my system to a seat floor bolt. Link to comment Share on other sites More sharing options...
gogmorgo Posted September 18, 2018 Share Posted September 18, 2018 The only option that's really all that much better than bolting to some part on the body is just running it straight back to the battery. Link to comment Share on other sites More sharing options...
Me&my86MJ Posted September 18, 2018 Author Share Posted September 18, 2018 2 hours ago, Pete M said: I grounded my system to a seat floor bolt. Ok that is what i was meaning 1 hour ago, gogmorgo said: The only option that's really all that much better than bolting to some part on the body is just running it straight back to the battery. That was original plan, just seems like lots of extra ran wire. Link to comment Share on other sites More sharing options...
Dzimm Posted September 18, 2018 Share Posted September 18, 2018 Your ground wire needs to be as short as possible. I speak from experience helping my buddy with his old competition setup (4 15" subs in the trunk of a Dodge Neon, yeah we made it fit and it was stupid loud). Just ground to whatever you have available, seat bolt works well. You can also weld a bolt to the floor to act as a stud or just put a bolt through the floor. Either will work just fine. Link to comment Share on other sites More sharing options...
Me&my86MJ Posted September 22, 2018 Author Share Posted September 22, 2018 Ok either there is something funky with my seat bolt or amp isn't working/wired properly. Link to comment Share on other sites More sharing options...
Knucklehead97 Posted September 23, 2018 Share Posted September 23, 2018 Using a multimeter to test the voltage at the amp will tell you if it's your ground or not. Link to comment Share on other sites More sharing options...
bad_idea Posted September 23, 2018 Share Posted September 23, 2018 If your seat bolts look anything like mine, rusty as all get out, then there is something funky with them. Use your multimeter to check for resistance from the ground lug of the battery to the ground lug of the amp. Could be getting a lot of resistance due to the rust. Link to comment Share on other sites More sharing options...
Dzimm Posted September 23, 2018 Share Posted September 23, 2018 16 hours ago, Me&my86MJ said: Ok either there is something funky with my seat bolt or amp isn't working/wired properly. Is it powering on at all? What exactly is it doing? Link to comment Share on other sites More sharing options...
Me&my86MJ Posted September 23, 2018 Author Share Posted September 23, 2018 No it doesn't seem to be turning on, check with multimeter got 14.65v(or 12.65v) at power wire, at power on amp, and at the ground on amp. The tiny red led lights aren't even coming on. Link to comment Share on other sites More sharing options...
Minuit Posted September 23, 2018 Share Posted September 23, 2018 What kind of sub is this? Also, definitely check that your ground is actually ground. There should be very little resistance between the ground terminal of the sub and the negative battery terminal. Link to comment Share on other sites More sharing options...
Me&my86MJ Posted September 23, 2018 Author Share Posted September 23, 2018 Its an MTX audio tube sub/amp combo. Link to comment Share on other sites More sharing options...
Dzimm Posted September 24, 2018 Share Posted September 24, 2018 You look to be missing the remote wire. It needs the signal from the radio to turn on. It's usually a blue wire in the radio harness labeled "REM". It will hook up to the lug between your ground and positive on the amp. Edit: after you hook up the remote wire, double check the fuse on the amp to make sure it didn't get blown during any troubleshooting. Link to comment Share on other sites More sharing options...
Me&my86MJ Posted September 24, 2018 Author Share Posted September 24, 2018 2 hours ago, Dzimm said: You look to be missing the remote wire. It needs the signal from the radio to turn on. It's usually a blue wire in the radio harness labeled "REM". It will hook up to the lug between your ground and positive on the amp. Edit: after you hook up the remote wire, double check the fuse on the amp to make sure it didn't get blown during any troubleshooting. Oh $#!&, I read I didn't need REM hooked up. Not to hard to run another wire. Fuse was first thing I check, then I even tryed hooking power and ground backwards and blew the fuse. Well fingers crossed and I will update when I get that wire ran. Link to comment Share on other sites More sharing options...
shrapneltyphoon Posted September 24, 2018 Share Posted September 24, 2018 Just got done ripping out the previous owners amp and he had used a sheet metal screw through the back panel. Worked but still would go with the seatbelt bolt. Just clean up the metal and screw it down. Link to comment Share on other sites More sharing options...
Me&my86MJ Posted September 27, 2018 Author Share Posted September 27, 2018 On 9/23/2018 at 6:35 PM, Dzimm said: You look to be missing the remote wire. It needs the signal from the radio to turn on. It's usually a blue wire in the radio harness labeled "REM". It will hook up to the lug between your ground and positive on the amp. Thank you Dzimm, that was the problem and solution to my puzzle. Side note amp/sub doesn't seem to work with aux input.... Link to comment Share on other sites More sharing options...
Dzimm Posted September 27, 2018 Share Posted September 27, 2018 Just now, Me&my86MJ said: Thank you Dzimm, that was the problem and solution to my puzzle. Side note amp/sub doesn't seem to work with aux input.... The subs work with radio tho? Does the radio have separate bass settings for the aux input? Link to comment Share on other sites More sharing options...
Me&my86MJ Posted September 27, 2018 Author Share Posted September 27, 2018 Yes, worked wonderfully with radio, listening now at 2/3 volume level I used to. You know Dzimm I honestly don't know and will definitely have to check. Link to comment Share on other sites More sharing options...
Me&my86MJ Posted October 2, 2018 Author Share Posted October 2, 2018 On 9/26/2018 at 6:22 PM, Dzimm said: The subs work with radio tho? Does the radio have separate bass settings for the aux input? So sub only works with fm/am tuner, not aux or cd's.... I tryed iPod in usb port but stereo said usb error. So i need to find usb friendly device to check if sub works through that source. Stereo unit didn't seem to have any special settings for aux bass either, just basic sound adjustment type settings. So like most things on my jeep it works and it doesn't. Link to comment Share on other sites More sharing options...
Dzimm Posted October 3, 2018 Share Posted October 3, 2018 2 hours ago, Me&my86MJ said: So sub only works with fm/am tuner, not aux or cd's.... I tryed iPod in usb port but stereo said usb error. So i need to find usb friendly device to check if sub works through that source. Stereo unit didn't seem to have any special settings for aux bass either, just basic sound adjustment type settings. So like most things on my jeep it works and it doesn't. That's interesting. I've never seen something like that happen. Does your radio have multiple audio output plugs on the back or just the two? Try using a flash drive with mp3 files on it in the USB port. Link to comment Share on other sites More sharing options...
Minuit Posted October 3, 2018 Share Posted October 3, 2018 Most aftermarket headunits these days have separate tone (including subwoofer volume) controls for aux and radio, usually buried under menus. Other than the headunit settings, I can't think of any reason your sub would only work on AM/FM and not aux. What is the exact make and model of this headunit? Can you feel the cone of the sub moving at all if you lightly touch your finger to it? Just for poops and laughters: does the light on the sub stay on when you're in aux mode? Link to comment Share on other sites More sharing options...
Me&my86MJ Posted October 3, 2018 Author Share Posted October 3, 2018 Just two inputs, it's an Alpine unit, yes light on external sub controller turns off, it actually fades off and stays off when I turn it from am/fm to cd/aux, I still have yet to try another device in usb Link to comment Share on other sites More sharing options...
Dzimm Posted October 3, 2018 Share Posted October 3, 2018 8 hours ago, Me&my86MJ said: Just two inputs, it's an Alpine unit, yes light on external sub controller turns off, it actually fades off and stays off when I turn it from am/fm to cd/aux, I still have yet to try another device in usb Double check your remote wire. I'm wondering if you have it hooked to a powered antenna lead and not the actual remote wire. Link to comment Share on other sites More sharing options...
Minuit Posted October 3, 2018 Share Posted October 3, 2018 Yeah, sounds like you've got the power antenna wire hooked up to the amp instead of the remote turn-on. Link to comment Share on other sites More sharing options...
Me&my86MJ Posted October 3, 2018 Author Share Posted October 3, 2018 4 hours ago, Dzimm said: Double check your remote wire. I'm wondering if you have it hooked to a powered antenna lead and not the actual remote wire. ......... Well I guess this is where a nice wiring diagram or owners manual would have made this a whole lot easier. Wow, that being wired that way can make it work like that. Well I will be pulling it out again and hopefully get that squared away. I think and hope there is only one other wire that was free but I could be wrong. Thank you guys for your help too Link to comment Share on other sites More sharing options...
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