made a boo boo
 

Well.. let me start off with...I crossed the positive and negative, while jumping the battery on my 88 supra. Now with a new battery, the horn goes off when I hit the key. replaced a 30 and a 40 amp fuse link. but don't know where to go next.Any help out there for my idiocy.

Try locking & unlocking the driver's door with the key. Perhaps the security system is causing the trouble.