Drain .03 miliamps new yellow top optima only 6 mos old only drive
car maybe once a week or less. Short trips to dr. office or grocery shopping.
04 roadster. This my 3rd battery in 3 years. Advance auto tested battery in past
along with alternator and says all is good. Sensor for alt. in car holds between 13.8 to
14.4 while driving it. Had an after market radio installed which stopped working a yr ago.
I heard some popping from speakers and eventually no sound came out from speakers again.
Stereo is always off now but if i turn it on I will hear popping that sounds like a rock hitting the
windshield. So that is why i never turn it on. Bose amps still in car and left speakers used to cut out.

Now wondering if alt. is just not charging good enough or is it a short but i would expect to see drain
if there was a short. Someone please help I'm confused. I've checked all fuses all good and no excessive
drain.

 

also alternator is original one from day one.

 

electrical short with the new stereo is draining the battery.

 

So since it was only a dash install for headunit I'll check there 1st. Is there anywhere sugessted for checking the Bose system for shorts?

 

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