I bought this for my 06 road king because I was going on a road trio and wanted to be able to use my car GPS unit. I had the mount for the GPS and saw this plug and though "This will be perfect." Well it was not. Dennis Kirk sent the product right away and was delivered right on time. That night I plug the powerport into my bike and plug my iphone charger into it and it worked. Day before I was going to leave, i got ready to run my GPS power cord and pluged it into the NAMS power port and nothing. Dont know why it wouldnt work with a gps but worked fine with phone. Hope this is helpful.