HI: I have a TTR1 table top radio that I just bought a subscription for. Can anyone tell me if I can purchase another and use the same access code to activate the service? I have it upstairs on my nightstand, and would like to keep it there. My wife would like to use one in the downstairs kitchen/living room area. If we use one at a time, is it feasible to use both units, or do I need another subscription? Thanks Joe.