Guys, he's mentioned that he wants to use the radio with a Nacre QuietPro system. That particular item combines active hearing protection with PTT features and is only compatible with a select few radios, the HT1000 being one of them. This is because the Nacre will only accept certain Motorola JEDI radio downleads as well as Mil PRR types, and must actually be specifically provisioned (firmware load) by Nacre themselves for one or the other, so he'd also best be aware of this little fact before purchasing the wrong one from eBay.
The rest of what Kokanee has said is absolutely correct respecting radio programming etc. so to the OP I say this...it's not going to be an easy path that you are embarking upon. NOTHING in commercial Motorola radios ever is...
- Fides et Amicitia
"Can't keep my eyes from the circling skies,
Tongue-tied and twisted Just an earth-bound misfit, I"
Learning To Fly
© 1986 Pink Floyd