i got a 98 gti today for near free. was told it was running fine then all the sudden died. ended up it blew the 5a fuse. the guy said he tried to change the fuse but it would pop instantly. so i got it today charged the battery, changed the 5a fuse and when i hook up the battery it blows. i unplugged the reg/rec. and hooked up the battery and the 15a fuse below the 5a poped. any ideas?????