This is not sc but on other Toyota car, I just installed on-dashboard navi system myself.
well after I installed it temporaryly, I went for test driving local. It worked no problem.
Later, I finished installing everything but my car doesnt start. When I turn on the key, I hear click click click noise from engine room. I measure the voltage on the battery, it shows 8V!! sometimes 11.80v..
What would be the problem? I can't even turn on the emergency light.
Is it un-grounded somewhere?
Should I get new battery?
Dont know what to do, so cold outside.