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Hello friends

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Hi ,just got a 97 740Il and was looking quite forward to a few minor repairs and then on the road!
Well that went all to pieces,purchased a new battery and while I was away from the shop
an employee was good enough to try and help out by installing it for me,well he hooked the cables up backwards and strange things occured there after. The lights flashed,the sunroof opened ,the cables got real hot and something under the hood didnt smell real good.
The car still starts and runs but the alarm will not shut off and i cannot tell yet any other issues as this is very loud and painful.
Any suggestions on what to do / what could possibly be fried by the cables being hooked up wrong and how am i able to stop the alarm?
Thanks for any help
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