I've had a few people that have done so. This will not fit on a 05 head O R APX6500, APX7500. You need a TIB conversion in order for this to work. I HAVE 50 AVAILABLE IF YOU NEED MORE. VERY HARD TO FIND BRAND NEW!
GET THEM WHILE THEY LAST! The item "Motorola APX XTL5000/APX7500 03 Handheld Control Head PMUN1034F BRAND NEW" is in sale since Wednesday, August 9, 2017. This item is in the category "Consumer Electronics\Radio Communication\Walkie Talkies, Two-Way Radios".
The seller is "vccode7" and is located in Monterey Park, California. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, Sweden, South Korea, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Qatar, Croatia, Colombia, Antigua and barbuda, Aruba, Belize, Dominica, Grenada, Saint kitts and nevis, Saint lucia, Turks and caicos islands, Barbados, Brunei darussalam, Bolivia, Ecuador, Egypt, Gibraltar, Guadeloupe, Iceland, Jordan, Cayman islands, Sri lanka, Luxembourg, Maldives, Nicaragua, Oman, Peru, Pakistan, Paraguay, Reunion, Viet nam, Uruguay.