WelshWizard wrote:e)not yet, but it came with a lead that has four connectors off, red white black and yellow for some reason can't seem to get any sound on the 1702 with it, get picture through the white lead, every thing seem to work apart from that, thinking its to do with the lead itself as the 1702 only has two in at the front. will have to find a diagram that shows the pin connections to make a lead with only two connectors ( hoping its not the Sid but I still have to run the diagnostic cartridge to make sure.
Sounds like you've been given an audio cable with a 5-pin DIN at one end and 4 RCA at the other. Does that fit what you've got?
The early C64 had a 5-pin DIN A/V connector, which carried standard composite video and mono audio. The 64C should have an 8-pin DIN A/V connector, which carries Luma and Chroma as well as composite and audio. With these you should have a cable with 8-pin DIN at one end and three RCA at the other. These then get plugged into the rear of the 1702 - white to Audio, yellow to Luma, red to Chroma. You'll get a better quality picture than using composite at the front of the 1702.