Dealership already replaced my battery 3 times. Everytime I have them check the problem, they can't find anything wrong. I did some checking and found out that everytime I use my nav system, my battery gets discharged. Anybody with the same problem w\ their 01 gs430???? I can't even do anything w\ my ML system because I know the minute I do any mods, the dealership will blame my mod.

 

well I cant help you there but I have 2 12" subs in my car and I used to use the stock battery and it drained bad to the point where all the lighting in my car would go black and my speakers would shut of I had to go driving on the highway to recharge the battery, but I went out and baught a optima yellow top and since then I have never had any problems with my battery, and it would be a very good investment if your going to upgrade your system in the future

 

What model # should I look for that would work w\the 430???