I have a Mercedes w124 chassis original Eclass with an upgraded alternator from a larger Mercedes my stock battery is in the trunk on the passenger side- in the rear quarter panel well. Lots of amps. MC4000 on the rear wall- and 300 watt mono blocks on each rear quarter panel, and another 400 watt amp on a sliding drawer.
I was thinking of adding a second battery in the mirror image location on the drivers side.
How would I connect that?
1. Should I use an isolator to reduce the load on the alternator?
2. Should I just parallel the batteries so I get more amperage? This is not an SPL car..I just want longer key off run time. OR is it fine to run one battery at a time with some sort of switch
3. If I do this two battery set up. What should my wiring scheme look like? Should I run two circuit breakers and two fuses into a single distribution block? OR should I just parallel the batteries and run whatever amp is closer to each battery to reduce resistance? Will I get more ground loop nise?
4. I want to run power and ground to my head unit so they all ground to the same point to reduce noise... (I have noise now- ironically caused by wiring of a unnamed former IASCA judge) this is what Whittledge (he has ZERO noise) does with his sprinter. Will running that long of a lead from the rear cause issues? Should I just measure resistance with a multi meter and call it a day...and ground close to the head unit? Another site says not to use the same ground exactly or the amps will feed noise into the signal components and to ground them close to but not at the same ground....thoughts?
5. With 2000 watts of McIntosh amplification should I change the grounding strap from my engine to chassis to a thicker gauge? Or is current flow there not a concern?
I was thinking of adding a second battery in the mirror image location on the drivers side.
How would I connect that?
1. Should I use an isolator to reduce the load on the alternator?
2. Should I just parallel the batteries so I get more amperage? This is not an SPL car..I just want longer key off run time. OR is it fine to run one battery at a time with some sort of switch
3. If I do this two battery set up. What should my wiring scheme look like? Should I run two circuit breakers and two fuses into a single distribution block? OR should I just parallel the batteries and run whatever amp is closer to each battery to reduce resistance? Will I get more ground loop nise?
4. I want to run power and ground to my head unit so they all ground to the same point to reduce noise... (I have noise now- ironically caused by wiring of a unnamed former IASCA judge) this is what Whittledge (he has ZERO noise) does with his sprinter. Will running that long of a lead from the rear cause issues? Should I just measure resistance with a multi meter and call it a day...and ground close to the head unit? Another site says not to use the same ground exactly or the amps will feed noise into the signal components and to ground them close to but not at the same ground....thoughts?
5. With 2000 watts of McIntosh amplification should I change the grounding strap from my engine to chassis to a thicker gauge? Or is current flow there not a concern?