What is the best option to get technical help in person (at home) to set up 5.1 HT spkrs and universal remote?

The AVR is a Onkyo TSX series and speakers are Magnaplanar , The universal remote control is from Logitech Harmony 880 . All i need to do is connect the 5.1 speaker system ( the wiring is concealed ) and set up the Logitech Universal remote , get the right Input / Putput set up and put the cables in order . I live in Jersey city , NJ . I tried reading manuals , websites and seeking remote help it does not seem to work . By the way , i recently moved to US and none of this was bought here and hence i cant walk into the store and ask for help .