I have a 2000 Electra Glide Standard and want to install an aftermarket radio. I've found an adapter to allow my handlebar controls to work but don't want to have to splice into all those wires. Does anyone have any ideas where I can get the other end of the factory radio plug? If I could find this, I could make up a pigtail and not have the mess of all those little splicing connectors. The harness end of the plug that's there now is a 23-pin AMP. Any ideas?