U should rip all the old wiring out... that was for his stereo and ur requires something different. Refer to the installation manual for help I am sure ur hook up is less complicated and does not require an amp to run... Most stereos do not need them and will let u know when they require one.
I had the ame thing happen to me and I was recommended the same powders with the same ingredients and to some degree it worked for a bit on and off... If u can't get to a doctor which I highly recommend since u took a vacation in a foreign land, go to a county health clinic which r free and...