Dual Battery System

Hi all,

I have a 2002 PA challenger that i want to fit a dual batery system. I have been told that there is not enough room under the hood to do this, and will need to fit a gel battery in the back of the car. My problem with this is that the challenger doesnt really have a lot of room in the back.

I have heard that it may be possible, and have read an article in the past that discussed a dual battery being fitted in the PA challenger, but cant remember where i saw the article.

Im sure that with a custom tray made that it must be possible to do this somehow. If anyone can offer me advice on how, or knows someone in Brisbane/ Ipswich that can do this , i would appreciate it,

Taf