I had this exact same problem just last week, car was having trouble starting and the radio would be reset randomly.
Brought it to the dealer and it did turn out to be the battery which I had replaced last year so they replaced it under warranty.
Hey guys, this is my first post and needed to check if what I did was ok :P. So my have a 99 4Runner with 90k km on it.
Anyways I got a Kenwood MP345-U from bestbuy a while back, they they did the installation for free. The only issue I found was that as long as the car was on the antenna would...