Starting today Sirius is offering current subscribers their choice of a free Sportster 4 or Starmate 4 after mail in rebate. This hot offer is only available to customers with existing accounts (which are currently in good standing) who would like to add an additional account for just $6.99 per month.

All you have to do is purchase one of these top of the line plug and play units before September 16th and activate your additional subscription by September 30th. If you have been debating on grabbing an additional account, what better excuse is there than free?

I always think its great when companies make a point of rewarding loyal customers instead of simply focusing on acquiring new customers, cough cough… cell phone companies.