allout13 Posted August 4, 2008 Report Share Posted August 4, 2008 This is the first time I have installed a second battery and I hooked everything up as shown in the picture... at first the amp would show that it was getting power but no power was coming out of the speaker outputs. I gave up and turned of the power and removed the keys from the ignition and all of the sudden the amp as well as my hu power back on and the amp is now giving output to the sub. The amp is not putting out near the power it should though and I cannot get anything to shut off. When the car is off the rear batt stays at 12.4volts and does not change when the car is running. With the amp on and the car off, my dmm shows no change in voltage when the bass drops. The front batt is grounded properly. After disconnecting the rear batt the car lost electricity so I checked grounds and made a better ground with the front batt and now the batt in the front rest at 12.3 instead of the 12.7 it was resting at before the problem. now that the ground in the front is fixed I have noticed that when the amplifier is connected to the rear batt is automatically shows power, but still gives no output (when everything is hooked up). as soon as the power wire was hooked up to the rear batt it caused the hu to turn on (w/o key turned on) even though the rear batt had not been grounded yet to anything other than the amp... anyone have a clue as to what could be wrong? Quote Link to comment Share on other sites More sharing options...
allout13 Posted August 4, 2008 Author Report Share Posted August 4, 2008 no one? Quote Link to comment Share on other sites More sharing options...
Dale Posted August 4, 2008 Report Share Posted August 4, 2008 I only see one slight prob...you're missing a fuse right before the battery in the back. Get that and you're good Quote Link to comment Share on other sites More sharing options...
allout13 Posted August 4, 2008 Author Report Share Posted August 4, 2008 I only see one slight prob...you're missing a fuse right before the battery in the back. Get that and you're good I know, when I have the money Ill get one, but right now with all of the problems Im having it would be a waste Quote Link to comment Share on other sites More sharing options...
Frozenbritches Posted August 4, 2008 Report Share Posted August 4, 2008 Damn...hate how fuses are so important.....Hell I'm gonna have 1 fuse, that's before my amp lol...j/k think I'll order more for the big 3..........maybe hehe... Anyways, what are the two batts, are they identical, are they AGMS? it's explained in other threads...if they are the same batt don't know what's wrong... if they are not both AGMs and are both different that's probably a problem and i'd remove that back batt quick..... Quote 2002 Jeep Grand Cherokee Laredo Hifonics Brutus Bxi2607D (FRIED...saving for ZX2500.1) 2 15" 07 L7's ported at 32hz Xplod POS for the MIDS, which are Memphis Link to comment Share on other sites More sharing options...
allout13 Posted August 4, 2008 Author Report Share Posted August 4, 2008 Damn...hate how fuses are so important.....Hell I'm gonna have 1 fuse, that's before my amp lol...j/k think I'll order more for the big 3..........maybe hehe...Anyways, what are the two batts, are they identical, are they AGMS? it's explained in other threads...if they are the same batt don't know what's wrong... if they are not both AGMs and are both different that's probably a problem and i'd remove that back batt quick..... The front batt is an interstate batt and not agm, the rear batt is a deka intimidator 9A31 which is an AGM. how could that cause a problem? Quote Link to comment Share on other sites More sharing options...
MECHMAN Posted August 4, 2008 Report Share Posted August 4, 2008 The front batt is an interstate batt and not agm, the rear batt is a deka intimidator 9A31 which is an AGM. how could that cause a problem? The resting voltage will be different between the two, and it doesn't work as well as having both batteries agm. That is not what is causing you're problem, however. It is definitely a wiring problem, most likely a bad connection somewhere. Quote 1-888-MECHMAN www.Mechman.com [email protected] Link to comment Share on other sites More sharing options...
kevinb721 Posted August 4, 2008 Report Share Posted August 4, 2008 if i were you i would ground the amp to something other than the negative battery post. im not sure if thats your problem either but you never know. Quote 12" fi q rf t10001 naw mean Link to comment Share on other sites More sharing options...
allout13 Posted August 4, 2008 Author Report Share Posted August 4, 2008 I have no idea what I did, but now both batteries are working properly and the hu doesnt turn on without the key turned. the only problem is that the amp shows power but it seems as if it does not turn on (power up) and there is no output Quote Link to comment Share on other sites More sharing options...
dmanson Posted August 4, 2008 Report Share Posted August 4, 2008 This is the first time I have installed a second battery and I hooked everything up as shown in the picture... at first the amp would show that it was getting power but no power was coming out of the speaker outputs. I gave up and turned of the power and removed the keys from the ignition and all of the sudden the amp as well as my hu power back on and the amp is now giving output to the sub. The amp is not putting out near the power it should though and I cannot get anything to shut off. When the car is off the rear batt stays at 12.4volts and does not change when the car is running. With the amp on and the car off, my dmm shows no change in voltage when the bass drops. The front batt is grounded properly. After disconnecting the rear batt the car lost electricity so I checked grounds and made a better ground with the front batt and now the batt in the front rest at 12.3 instead of the 12.7 it was resting at before the problem. now that the ground in the front is fixed I have noticed that when the amplifier is connected to the rear batt is automatically shows power, but still gives no output (when everything is hooked up). as soon as the power wire was hooked up to the rear batt it caused the hu to turn on (w/o key turned on) even though the rear batt had not been grounded yet to anything other than the amp... anyone have a clue as to what could be wrong? you don't really need a fuse from the 2nd battery to amp. you can place that fuse right before the 2nd battery. Quote 2-DC 15XLM2 D.7s 1-DC 5K amp (1) XS Power D6500(UNDERHOOD) and (1) XS3000(REAR) 3 runs 1/0ga for power and 2 runs of 1/0ga for negative. (2)-RFT165s components, ...... 4 separate 1 inch tweetersRF T600-2(fronts) Punch 450.4(rear) Audiocontrol 3.1. DC power 260amp alternator w/MLA Module Link to comment Share on other sites More sharing options...
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