help with big 3 wiring and extra deep cycle battery

[RF_toyotaGS300 10+ year member]

ok first i have had this system for about a year now and i have just recently been running into problems i think the big three is wired wrong when i looked under the hood i noticed there was only 2 wires that were there also there was no upgraded wire going to the alternator so is there a different way to wire a big three with 2 batteries the yellow top optimum in is the trunk and seems to be wired fine but idk......i took my car to car toys shop because my car is a lexus and i didn't want to screw something up so i figured let the professionals do it so can anyone help me out with diagrams and what not i am seriously lost

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[gckless 5,000+ posts]

Get some pics uploaded. Search for big 3, there is a sticky on how to do it and what should be done, though with 2 batteries it's possible you might want to do something a bit different than the standard. Also, maybe some punctuation?

 

[RF_toyotaGS300 10+ year member]

sorry about the punctuation i was just in a rush...so the pic have to be uploaded from photobucket or can i just post them from my pic folder on my computer?

 

[RF_toyotaGS300 10+ year member]

 

[gckless 5,000+ posts]

Any way you can get them on here will work. Going to need more than that one. Need under hood pics for sure. What exactly is the problem? And you may want to be careful with using those side posts on the yellowtops, they won't handle the current the top posts will for long periods of time.

 

[RF_toyotaGS300 10+ year member]

i'll get one from under the hood now give me like 5 min

 

[gckless 5,000+ posts]

What is the problem you have been seeing?

 

[RF_toyotaGS300 10+ year member]

 

[RF_toyotaGS300 10+ year member]

there is no upgraded wiring from the alternator to the battery, so how does the alternater keep both batteries charged?

 

[RF_toyotaGS300 10+ year member]

this is the wiring from the front to the trunk

 

[gckless 5,000+ posts]

there is no upgraded wiring from the alternator to the battery, so how does the alternater keep both batteries charged?

Through the stock wiring. You can add that in there easily. I've asked 3 times now, what's the problem you have been seeing?

 

[RF_toyotaGS300 10+ year member]

the lights diming badly and the bass sometimes cuts in and out oh also some fuse under the hood blew and killed mt whole stereo and cabin electrical light ect...