i've been looking around youtube and it seems like people put different pick-ups in their guitars instead of their stock pick-ups...i have a made in mexico jazzmaster...i here alot of praise for seymour duncan pickups...and i seen i can get them for a fair price on ebay....so should i buy these for my jazzmaster? can a local guitar center put them in, or do i have to find someone to install them for me?