head unit install, help

[vosschs 5,000+ posts]

my freind has a 2000 grand prix and trying to put in a jvc head unit, i need a wire harness dont i? and where can i get one?

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[vosschs 5,000+ posts]

and the antenna outlet cap thing is to small can i just buy a new one of those?

 

[jtomsic 5,000+ posts]

yes and yes goto walmart if they dont have it goto bestbuy they got harnesses and antenna kits

 

[vosschs 5,000+ posts]

k should i get one for just the make model , or will just pontiac one work, **** its been so long since ive had to put a head unit in another car, im used to changing mine so often , i forgot what to do , lol thats sad,