Battery drain after changing radio

[rkthoka]

Hi

I have upgraded the radio with AVIN2 (Android) based. Eversince I am facing battery Drain issue..

if I drive vehicle to my work place that is 60 miles (2 way) battery stays up and runs fine.

But if my spouse drives to her work i.e. 20 miles (2 way) and then with in 2 days battery drains..

So, after calling AAA person coulpel of times, I went and purchase car battery charger. Here is the interesting thing, I charge to 100% and let it sleep(around 9 to 10 hours) overnight, Morning I check the battery strenght and it came down to 52%. If battery strenght goes down to below 40-30% then i can not start the car...


well, In addition to this I am also hearing small electric/electronic click sounds from CARGO area (from left side when I sit in driving seat) or from stero ( I am not sure)

What I did so far:
1) Initially the person who was installed left old GPS DVD connected and not taken away. So, I have took off that one also .. but still no luck, electoric click sound streanth went down but I can still here if i do not play radio or songs...

2) I left iPhone charger cord to the USB, and I took it out aswell

3) also verified vehicle going sleep after 16 minutes

4) I took out 73 and 75 fuse which are belongs to radio and GPS but no luck ;(


-RKT