I had an awful day with my car, first the instrument panel fuse blew into pieces. so i had to walk 2 miles to the store and then i was driving the car and noticed the check engine light was on so i took the car to autozone and got a code p1705. the problem that comes with the code is that the transmission sticks at 2nd and 3rd gear but mine doesnt.

this all came after i put 18 inch rims on my car and i installed a sub and an amp in my car, don't know if this has anything to do with it or not.

 

Yaer and model?

 

and when the sub was being installed are you sure you didnt touch power to the chassis?