kenwood or sony easy options,
leads typically between £32 an £40, got to be from certain modles upwards, sony (dont quote me on this) CDX-600C and definatley from the Kenwood KDC-6021,
also you will loose your display unless u wish to have your trousers pulled down for another lead.
also if the lead goes to he head up display its a dash off job ( dont worry not to hard)
any other qs?
Tom