a3 head unit help !!!

[stowya3]

right guys i have and audi A3 1.8T sport on a X reg so late 2000 , think its the face lift model, i want to change my headunit to a panasonic one but i took out the original audi concert unit with a tape deck in there and it has 4 ISO connectors in there im pretty sure the red one with one cable in there does the link to information screen where the speedo is, but going horizontally next to the red ISO lead theres 3 more ISO leads there and in my new panasonic unit there are only two holes for connection, is there a lead adaptor i need or is one of them not in use if i change the unit????

any help would be greatly appreciated guys cheers

heres a pic if it helps:

[A3_HAWKEY]

hi mate the horizontal one i aint sure mine didnt have hat on it ! but the top row is for the rear speakers and the standard sub the way i got around it was to rewire the hole back end of the car with oxegen free cable and bypass the standard amps !a little work but a hell of a sound after
the other two blocks are standard iso you can just use them but you will loose the rear speakers if you dont rewire the other blocks
hope this helps
ian