battery reverse polarity

JoeyinSanDiegoJoeyinSanDiego Member Posts: 1
edited May 2019 in Mazda
I changed my battery in my 08 mazda cx9. I accidently put the terminals on the wrong post. My horn went off. I put them back the way they were suppose to go and now it wont turn over. I get instrument lights, but no radio, interior lights, ac nothing. what is wrong and what should I look for
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