On 02/12/2017 9:56 AM, trader_4 wrote:
....

Since it started with the install of the new, apparently aftermarket
radio, I'd suspect it's possible something is wired up wrong there.
These cars have all kinds of computers and screwing up something
with the radio could result in something else staying on. I'd
start with just disconnecting the new radio as an obvious test.

"..now it's at the mechanic's and they even unhook[ed] the radio [a]n[d]
the car still dies overnight.."

Would agree it's good possibility the install did something bad, but
seems to be more than just what is powering the radio...unless, of
course, the chump mechanic didn't actually disconnect the radio but
something else...

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