Because the stereo only utilizes the 23-pin harness plug, how will I use my intercom system and CB radio? Aquatic AV June 05, 2020 14:11 Updated Unfortunately, you will lose out on your intercom system and CB radio. Related articles My bike has two harness plugs. Which plug do I use to connect into the back of the stereo? I registered my product! When will I receive my 10% off coupon? Comments 0 comments Article is closed for comments.