Cars Q&A

sir, i am making my rebuilting my 2004 indicab to to 2009 indica and i have repainted it and now i have trring to make its interiors like tata indigo camel colour i faced with problem regarding ac control unit which is differnt from old one i have bought all central consoul unit and nobels but older one have tecnically differnt my mind is their it can we changed but some bdy told its not easy is because all electric curcit is differnt from old one to new only saw is the blower fan control unit having some wires and other two are having wire cable only works like accelater cables how change that any bdy can give the two digram of wiring of both