You don't need any leads to fit a Parrot into the Omega.
Its a straight in line plug. I located the 'blue box' in the passenger footwell behind the glove box
You don't need an aerial connection as its a bluetooth kit it works off the phone, there isn't an option/ need for aerial
i had the 3100 monochrome:-

and later updated to the 3200 colour:-

and now have the MKi9200 with full iPod/ iPhone/ MP3 player/ memory card integration
Would recommend them as a kit, but would also ensure you have the latest software updates which with the 3100 might mean sending it back to Parrot. Without the updates some newer smart phones have issues