Hi roadhouse, I don't understand what your getting at, cellphones are wireless you don't need any connections or systems, other then to plug it into a 12VDC outlet to charge the battery, or 110VAC if you have wall charger.
Hi roadhouse, I just got back from Wal-Mart and saw a deal for about $50.00 that maybe what you are looking for. Would never have noticed it if it weren't for your question, guess I understand now.