today my car just cut off while driving, i got someone to come and jump start me, but the car only ran for about 10 seconds then cut off again. im guessing that this is not a battery problem and it is probably the alternator. i have a 96 200sx ser, has anyone had to install a new alternator here? if so is there a site with a guide to installing one? and how hard would it be? cause i know that nissan will probably charge me like $500 for the install. or do you think it could be something else?? any help at all would be appreciated. thanks.