Hi guys I ve added 348 SP ( 94 ) to my collection . It came without a radio . Enclosed a pic of the what looks looks like OEM harness . There is a coaxial aerial areial cable btw too not shown . i just fitted a cheap e bay rad with blue tooth / MP3 , it works but it used the black Earth and big grey +ve to connect up . As most will know the big grey is a permanent live . While testing with my multimeter and the ignition key I couldn’t figure out what the red wire does ? The pic is what I have to deal with , I found the speaker colours and other wires from searching on here . As you can see the previous owner ( on removing his device ) temp placed the black Gnd , and the little red wire iam enquiring about in a bit of black tubing , they weren’t touching .This tube was to some how isolate the pair from each other and the car frame ? . Anyhow what does this little red do ? - Image Unavailable, Please Login
Are there 7 wires in the photo? The wiring diagrams only show 6 wires: small violet and grey: right speakers small green and violet/black: left speakers large grey: live battery power from fuse large black: ground The red wire may be a source of key power, perhaps coming through a fuse which has been removed or has blown?