Hazard Flashing Warning Light Unit Problems of Mazda MAZDA6

My battery on my 2004 Mazda 6 went out and I had to jump start it to. Go to work and come from work one day. The next day I took my battery to get checked to see what the issue was and they told me my battery was completely dead and it had only 6 months of usage. I put a new battery in my vehicle and as I installed the new battery I unplugged it to see if my alternator would kick in to make sure it was working correctly and as I put the battery back on a shortage happens and my wipers came on at full speed and all my lights were blinking on my dash and a smell of electrical wires burning started to happen and the entire electrical system has messed up. Turn signal lights don't work,headlights, bose stereo,hazard lights,reverse lights truck don't open windows don't go up or down and while I drive the speedometer does not track the velocity the needle goes crazy and my e-brake light is on and track control light is blinking and the air bag lights come on all the time . I do not know where to start to fix this issue but I'm really disappointed in this because I just have 8 months with my vehicle from a dealer ship and they checked out car just fine. This is going to be a super high cost to repair all the damages. Just from a change of a battery. And to top it all thank god I wasn't in the car because their was a small fire in the wires but it went away quick.

See all problems of the 2004 Mazda MAZDA6 🔎.